@@ -0,0 +1,13 @@
+---
+'@object-ui/app-shell': patch
+'@object-ui/i18n': patch
+---
+
+fix(studio): a report's new Order or Blocks item, or a chart type picked before its axes, is held until it is filled in, instead of being autosaved and refused
+
+Clause-②: no
+Metadata-protocol: none
+
+In the Studio's Interfaces pillar, a report's properties used to autosave an unfinished edit: "Add item" under **Order** sent an empty sort key, "Add item" under a joined report's **Blocks** sent an empty block, and picking a **Chart type** before its X and Y axes sent a chart without them. The draft door refused each (422), and every later save of the report carried the same body and was refused too, so an edit made afterwards was lost on reload.
+
+Such a report is now held the way a dashboard's unfinished list item is: nothing is sent while the report's own schema refuses the item, or the chart, only for inputs it leaves unset. A neutral line names what it needs (for example "Order By on item #1 of “Order” needs a value", or "X-Axis (dimension) on the report’s chart needs a value") with a **Show me** that opens the report's properties at that input, and Publish refuses while it is held. Once the input is filled in, the next autosave sends every edit kept meanwhile. An item or a chart refused for a value it holds is not held: it is sent, and the refusal it draws shows as before.
@@ -0,0 +1,292 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * objectstack#27785 — the Interfaces pillar holds a report unsent while an item
+ * just added to one of its list properties, or a chart whose type was picked
+ * before its axes, is unfinished, instead of autosaving it for the draft door
+ * to refuse.
+ *
+ * The card: Order → "Add item" sent `order: [{}]` (422 `order.0.by`), a joined
+ * report's Blocks → "Add item" sent `blocks: [{}]` (422), and a chart type
+ * picked first sent `chart: { type }` (422 `chart.xAxis` / `chart.yAxis`).
+ * Every later save carried the same body and was refused too. The pillar now
+ * holds the report as it holds the dashboard's list items (objectstack#27459):
+ * nothing is sent, a neutral line names the input with a "Show me", and
+ * filling it in lets the next autosave send every edit kept meanwhile.
+ *
+ * Mounted with a metadata client double that records every save, a stub
+ * canvas and the real `ReportDefaultInspector` (its spec-driven form and its
+ * own chart panel).
+ */
+
+import '@testing-library/jest-dom/vitest';
+import * as React from 'react';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { act, cleanup, fireEvent, render, screen, waitFor, within } from '@testing-library/react';
+import { MemoryRouter } from 'react-router-dom';
+import { ReportSchema } from '@objectstack/spec/ui';
+
+const NAV = [{ id: 'nav_rep', type: 'report', label: 'Sales report', reportName: 'sales_report' }];
+
+const SUMMARY_REPORT = {
+  name: 'sales_report',
+  label: 'Sales report',
+  type: 'summary',
+  dataset: 'sales_ds',
+  rows: ['stage'],
+  values: ['revenue'],
+};
+
+const JOINED_REPORT = {
+  name: 'sales_report',
+  label: 'Sales report',
+  type: 'joined',
+  blocks: [{ name: 'won', dataset: 'sales_ds' }],
+};
+
+const DATASETS = [
+  {
+    name: 'sales_ds',
+    label: 'Sales',
+    object: 'opportunity',
+    dimensions: [{ name: 'stage', label: 'Stage' }],
+    measures: [{ name: 'revenue', label: 'Revenue', aggregate: 'sum' }],
+  },
+];
+
+/** The report the pillar opens, as served: it parses with the spec. */
+let stored: Record<string, unknown> = SUMMARY_REPORT;
+
+const mockClient = {
+  withPreviewDrafts: vi.fn((): unknown => mockClient),
+  save: vi.fn(async (_type: string, _name: string, _body: Record<string, unknown>) => ({
+    success: true,
+    version: 'v1',
+    state: 'draft',
+  })),
+  list: vi.fn(async (type: string) => {
+    if (type === 'app') return [{ name: 'acme_app', label: 'Acme' }];
+    if (type === 'dataset') return DATASETS;
+    if (type === 'report') return [stored];
+    return [];
+  }),
+  listDrafts: vi.fn(async () => []),
+  layered: vi.fn(async (type: string) => {
+    if (type === 'app') return { effective: { name: 'acme_app', label: 'Acme', active: true, navigation: NAV } };
+    if (type === 'report') return { effective: JSON.parse(JSON.stringify(stored)) };
+    return { code: null, overlay: null, overlayScope: null, effective: null };
+  }),
+  getDraft: vi.fn(async () => null),
+  get: vi.fn(async (type: string, name: string) =>
+    type === 'dataset' ? DATASETS.find((d) => d.name === name) : undefined,
+  ),
+};
+
+vi.mock('../metadata-admin/useMetadata', async (importOriginal) => {
+  const mod = await importOriginal<typeof import('../metadata-admin/useMetadata')>();
+  return { ...mod, useMetadataClient: () => mockClient, useMetadataTypes: () => ({ entries: [] }) };
+});
+
+vi.mock('./packages-io', async (importOriginal) => {
+  const mod = await importOriginal<typeof import('./packages-io')>();
+  return { ...mod, fetchPackages: vi.fn(async () => []) };
+});
+
+vi.mock('@object-ui/react', async (importOriginal) => {
+  const mod = await importOriginal<typeof import('@object-ui/react')>();
+  return { ...mod, useAdapter: () => ({}) };
+});
+
+import { InterfacesPillar } from './StudioDesignSurface';
+import { registerMetadataPreview } from '../metadata-admin/preview-registry';
+import { registerMetadataDefaultInspector } from '../metadata-admin/default-inspector-registry';
+import { ReportDefaultInspector } from '../metadata-admin/inspectors/ReportDefaultInspector';
+import { t, tFormat } from '../metadata-admin/i18n';
+
+// A stub canvas: the leaf needs a registered preview to be draft-editable,
+// and the canvas's own drawing is not what this file pins.
+registerMetadataPreview('report', () => null);
+registerMetadataDefaultInspector('report', ReportDefaultInspector);
+
+beforeEach(() => {
+  stored = SUMMARY_REPORT;
+  for (const fn of Object.values(mockClient)) fn.mockClear();
+});
+afterEach(cleanup);
+
+const L = (key: string) => t(key, 'en');
+
+function mountPillar(onHeldEditChange?: (clause: string | null) => void) {
+  return render(
+    <MemoryRouter initialEntries={['/studio/com.acme.app/interfaces']}>
+      <InterfacesPillar packageId="com.acme.app" onHeldEditChange={onHeldEditChange} />
+    </MemoryRouter>,
+  );
+}
+
+function reportSaves(): Array<Record<string, unknown>> {
+  return mockClient.save.mock.calls.filter((c) => c[0] === 'report').map((c) => c[2]);
+}
+
+/** Past the autosave's 1.5 s debounce. */
+async function outlastDebounce(): Promise<void> {
+  await act(async () => {
+    await new Promise((r) => setTimeout(r, 2300));
+  });
+}
+
+/** The report's properties are open, with the list property labelled `list` drawn. */
+async function ready(list: string): Promise<HTMLElement> {
+  const inspector = await screen.findByTestId('if-inspector', undefined, { timeout: 8000 });
+  await within(inspector).findByText(list, { selector: 'label' }, { timeout: 8000 });
+  return inspector;
+}
+
+/** The form row of the list property labelled `label`: its label and its repeater. */
+function listRow(inspector: HTMLElement, label: string): HTMLElement {
+  const row = within(inspector).getByText(label, { selector: 'label' }).parentElement?.parentElement;
+  if (!row) throw new Error(`no form row for ${label}`);
+  return row;
+}
+
+/** The report's own Label input. */
+function editLabel(inspector: HTMLElement, value: string): void {
+  const input = within(inspector).getByLabelText(L('engine.inspector.report.label'));
+  fireEvent.change(input, { target: { value } });
+  fireEvent.blur(input);
+}
+
+/** Picks `option` in the inspector select labelled `label`. */
+async function pick(inspector: HTMLElement, label: string, option: string | RegExp): Promise<void> {
+  fireEvent.keyDown(within(inspector).getByRole('combobox', { name: label }), { key: 'ArrowDown' });
+  await waitFor(() => expect(screen.queryAllByRole('option').length).toBeGreaterThan(0));
+  fireEvent.click(screen.getByRole('option', { name: option }));
+}
+
+const orderClause = tFormat('engine.studio.held.listItemNeedsInput', 'en', { input: 'Order By', n: 1, list: 'Order' });
+const heldLine = (clause: string) => tFormat('engine.studio.held.line', 'en', { clause });
+
+describe('an item just added to a report list property is held until it is filled in (objectstack#27785)', () => {
+  it('Order → Add item, then a Label edit: nothing is sent, no red strip, the line names the Order By', async () => {
+    const report = vi.fn();
+    mountPillar(report);
+    const inspector = await ready('Order');
+    fireEvent.click(within(listRow(inspector, 'Order')).getByRole('button', { name: L('engine.form.addItem') }));
+    editLabel(inspector, 'Sales v2');
+    await outlastDebounce();
+
+    expect(reportSaves(), 'the unfinished item is not sent, nor the Label edit with it').toEqual([]);
+    expect(screen.queryByTestId('studio-refusal'), 'no red strip on the normal path').toBeNull();
+    expect(screen.getByTestId('studio-held-message')).toHaveTextContent(heldLine(orderClause));
+    // Publish's half: the surface is told what is held.
+    expect(report).toHaveBeenLastCalledWith(orderClause);
+  });
+
+  it('"Show me" focuses the list in the report properties', async () => {
+    mountPillar();
+    const inspector = await ready('Order');
+    const row = listRow(inspector, 'Order');
+    fireEvent.click(within(row).getByRole('button', { name: L('engine.form.addItem') }));
+    const show = await within(await screen.findByTestId('studio-held')).findByRole('button', {
+      name: L('engine.studio.refusal.show'),
+    });
+    (document.activeElement as HTMLElement | null)?.blur();
+    fireEvent.click(show);
+    await waitFor(() => expect(row.contains(document.activeElement)).toBe(true));
+  });
+
+  it('filling the Order By in sends one save carrying the item and the Label edit kept meanwhile', async () => {
+    const report = vi.fn();
+    mountPillar(report);
+    const inspector = await ready('Order');
+    const row = listRow(inspector, 'Order');
+    fireEvent.click(within(row).getByRole('button', { name: L('engine.form.addItem') }));
+    editLabel(inspector, 'Sales v2');
+    await outlastDebounce();
+    expect(reportSaves()).toEqual([]);
+
+    const by = within(row).getByLabelText('Order By');
+    fireEvent.change(by, { target: { value: 'stage' } });
+    fireEvent.blur(by);
+    await waitFor(() => expect(reportSaves()).toHaveLength(1), { timeout: 4000 });
+    const [sent] = reportSaves();
+    expect(sent.label).toBe('Sales v2');
+    expect(sent.order).toEqual([expect.objectContaining({ by: 'stage' })]);
+    expect(
+      ReportSchema.safeParse(JSON.parse(JSON.stringify(sent))).success,
+      'the body sent is one the door accepts',
+    ).toBe(true);
+    await waitFor(() => expect(screen.queryByTestId('studio-held')).toBeNull());
+    expect(report).toHaveBeenLastCalledWith(null);
+  });
+
+  it('a joined report’s Blocks → Add item: nothing is sent, the line names the block’s Name', async () => {
+    stored = JOINED_REPORT;
+    const report = vi.fn();
+    mountPillar(report);
+    const inspector = await ready('Blocks');
+    fireEvent.click(within(listRow(inspector, 'Blocks')).getByRole('button', { name: L('engine.form.addItem') }));
+    await outlastDebounce();
+
+    const clause = tFormat('engine.studio.held.listItemNeedsInput', 'en', { input: 'Name', n: 2, list: 'Blocks' });
+    expect(reportSaves()).toEqual([]);
+    expect(screen.queryByTestId('studio-refusal')).toBeNull();
+    expect(screen.getByTestId('studio-held-message')).toHaveTextContent(heldLine(clause));
+    expect(report).toHaveBeenLastCalledWith(clause);
+  });
+
+  // CONTROL: an edit to a report with nothing unfinished saves at once.
+  it('a Label edit alone saves at once, with no line', async () => {
+    mountPillar();
+    const inspector = await ready('Order');
+    editLabel(inspector, 'Sales v2');
+    await waitFor(() => expect(reportSaves()).toHaveLength(1), { timeout: 4000 });
+    expect(reportSaves()[0].label).toBe('Sales v2');
+    expect(screen.queryByTestId('studio-held')).toBeNull();
+  });
+});
+
+describe('a chart type picked before its axes is held until both axes are picked (objectstack#27785)', () => {
+  const x = L('engine.inspector.report.chartX');
+  const y = L('engine.inspector.report.chartY');
+
+  it('nothing is sent while an axis is unset; the line names it, and "Show me" focuses its picker', async () => {
+    const report = vi.fn();
+    mountPillar(report);
+    const inspector = await ready('Order');
+    await pick(inspector, L('engine.inspector.report.chartType'), 'bar');
+    await outlastDebounce();
+
+    const clauseX = tFormat('engine.studio.held.reportChartNeedsInput', 'en', { input: x });
+    expect(reportSaves(), 'the chart without axes is not sent').toEqual([]);
+    expect(screen.queryByTestId('studio-refusal')).toBeNull();
+    expect(screen.getByTestId('studio-held-message')).toHaveTextContent(heldLine(clauseX));
+    expect(report).toHaveBeenLastCalledWith(clauseX);
+
+    (document.activeElement as HTMLElement | null)?.blur();
+    fireEvent.click(within(screen.getByTestId('studio-held')).getByRole('button', { name: L('engine.studio.refusal.show') }));
+    await waitFor(() => expect(document.activeElement).toBe(within(inspector).getByRole('combobox', { name: x })));
+
+    await pick(inspector, x, 'Stage (stage)');
+    await outlastDebounce();
+    expect(reportSaves(), 'one axis is not enough').toEqual([]);
+    expect(screen.getByTestId('studio-held-message')).toHaveTextContent(
+      heldLine(tFormat('engine.studio.held.reportChartNeedsInput', 'en', { input: y })),
+    );
+  });
+
+  it('both axes picked: one save carrying the whole chart, and the line clears', async () => {
+    const report = vi.fn();
+    mountPillar(report);
+    const inspector = await ready('Order');
+    await pick(inspector, L('engine.inspector.report.chartType'), 'bar');
+    await pick(inspector, x, 'Stage (stage)');
+    await pick(inspector, y, /^Revenue/);
+    await waitFor(() => expect(reportSaves()).toHaveLength(1), { timeout: 4000 });
+    const [sent] = reportSaves();
+    expect(sent.chart).toEqual(expect.objectContaining({ type: 'bar', xAxis: 'stage', yAxis: 'revenue' }));
+    expect(ReportSchema.safeParse(JSON.parse(JSON.stringify(sent))).success).toBe(true);
+    await waitFor(() => expect(screen.queryByTestId('studio-held')).toBeNull());
+    expect(report).toHaveBeenLastCalledWith(null);
+  });
+});
@@ -261,6 +261,7 @@ import {
   objectSaveRefusal,
   plainRefusal,
   publishRefusal,
+  reportHeldEdit,
   type PublishFailure,
   type StudioHeld,
   type StudioRefusal,
@@ -4835,11 +4836,16 @@ export function InterfacesPillar({
   // objectstack#27459 — so is an item just added to one of the dashboard's
   // own list properties (Global Filters, the header's Actions), asked of the
   // spec's dashboard schema, until its required inputs are filled in.
+  // objectstack#27785 — a report likewise: an item just added to Order or a
+  // joined report's Blocks, or a chart whose type is picked before its axes,
+  // asked of the spec's report schema (`reportHeldEdit`).
   const leafType = current?.type;
-  const leafIncomplete = React.useMemo(
-    () => (ifDirty && leafType === 'dashboard' ? dashboardHeldEdit(draft, locale) : null),
-    [ifDirty, leafType, draft, locale],
-  );
+  const leafIncomplete = React.useMemo(() => {
+    if (!ifDirty) return null;
+    if (leafType === 'dashboard') return dashboardHeldEdit(draft, locale);
+    if (leafType === 'report') return reportHeldEdit(draft, locale);
+    return null;
+  }, [ifDirty, leafType, draft, locale]);
   const { loaded: draftLoaded } = useDraftAutoSave({
     // objectui#11232 — the leaf `doSave` addresses, `type:name`.
     target: leafKey,