Check for validity of the values.

ZeroIntensity · ZeroIntensity · commit 39e4a812cd85 · 2025-02-23T08:06:32.000-05:00
diff --git a/Objects/dictobject.c b/Objects/dictobject.c
@@ -4577,8 +4577,10 @@ dict_traverse(PyObject *op, visitproc visit, void *arg)
 
     if (DK_IS_UNICODE(keys)) {
         if (_PyDict_HasSplitTable(mp)) {
-            for (i = 0; i < n; i++) {
-                Py_VISIT(mp->ma_values->values[i]);
+            if (!mp->ma_values->valid) {
+                for (i = 0; i < n; i++) {
+                    Py_VISIT(mp->ma_values->values[i]);
+                }
             }
         }
         else {

Original file line number	Diff line number	Diff line change
`@@ -4577,8 +4577,10 @@ dict_traverse(PyObject op, visitproc visit, void arg)`
`4577`	`4577`
`4578`	`4578`	`if (DK_IS_UNICODE(keys)) {`
`4579`	`4579`	`if (_PyDict_HasSplitTable(mp)) {`
`4580`		`- for (i = 0; i < n; i++) {`
`4581`		`- Py_VISIT(mp->ma_values->values[i]);`
	`4580`	`+ if (!mp->ma_values->valid) {`
	`4581`	`+ for (i = 0; i < n; i++) {`
	`4582`	`+ Py_VISIT(mp->ma_values->values[i]);`
	`4583`	`+ }`
`4582`	`4584`	`}`
`4583`	`4585`	`}`
`4584`	`4586`	`else {`