fix: editing a queued message replaces composer content

Withdrawing a queued entry into the composer now overwrites the input
(and attached images) instead of appending, matching the edit affordance.

Co-authored-by: QoderAI (Qwen 3.8 Max) <qoder_ai@qoder.com>

Author: luoxuanzao

CHANGELOG.md

@@ -25,6 +25,8 @@ version with its date and start a fresh empty `[Unreleased]` above it.
   queued messages are preserved but no longer auto-sent, the panel header
   switches to a "queue paused" notice with a Resume action, and resuming
   (or clearing the queue) restores the normal one-per-turn drain.
+- Editing a queued message now replaces the composer content instead of
+  appending to it.
 
 ## [1.0.5] - 2026-08-18
 

src/features/chat/controllers/queued-message-controller.ts

@@ -2,7 +2,6 @@ import { setIcon } from 'obsidian';
 
 import type { ChatTurnRequest } from '../../../core/runtime/types';
 import { t } from '../../../i18n/i18n';
-import { appendMarkdownSnippet } from '../../../shared/markdown/markdown';
 import type { ChatState } from '../state/chat-state';
 import type { QueuedMessage } from '../state/types';
 import type { ImageContextManager } from '../ui/image-context';
@@ -78,13 +77,13 @@ export class QueuedMessageController {
     this.updateIndicator();
   }
 
-  /** Withdraw one item back into the composer. */
+  /** Withdraw one item back into the composer, replacing its content. */
   withdrawToComposer(id: string): void {
     const { state } = this.deps;
     const target = state.queuedMessages.find(message => message.id === id);
     if (!target) return;
     state.queuedMessages = state.queuedMessages.filter(message => message.id !== id);
-    this.restoreMessageToInput(target, true);
+    this.restoreMessageToInput(target);
     this.updateIndicator();
   }
 
@@ -192,19 +191,12 @@ export class QueuedMessageController {
     });
   }
 
-  private restoreMessageToInput(message: QueuedMessage, mergeWithComposer: boolean): void {
+  private restoreMessageToInput(message: QueuedMessage): void {
     const inputEl = this.deps.getInputEl();
-    const currentContent = mergeWithComposer ? inputEl.value.trim() : '';
-    inputEl.value = currentContent
-      ? appendMarkdownSnippet(message.content, currentContent)
-      : message.content;
+    inputEl.value = message.content;
 
     const imageContextManager = this.deps.getImageContextManager();
-    const currentImages = mergeWithComposer
-      ? (imageContextManager?.getAttachedImages() ?? [])
-      : [];
-    const restoredImages = [...(message.images ?? []), ...currentImages];
-    if (restoredImages.length > 0) imageContextManager?.setImages(restoredImages);
+    imageContextManager?.setImages([...(message.images ?? [])]);
     this.deps.resetInputHeight();
     inputEl.focus();
   }

tests/unit/features/chat/controllers/queued-message-controller.test.ts

@@ -135,8 +135,9 @@ describe('QueuedMessageController', () => {
     expect(state.queuedMessages.map(message => message.content)).toEqual(['second']);
   });
 
-  it('withdrawToComposer moves one item back into the input', () => {
+  it('withdrawToComposer replaces the input content', () => {
     const { controller, state, inputEl } = createController();
+    inputEl.value = 'draft in progress';
     controller.enqueue('first', turnRequest('first'));
     controller.enqueue('second', turnRequest('second'));