test_list.ListTest.test_no_memory triggers _Py_Dealloc assertion

[colesbury]

Seen in https://github.com/python/cpython/actions/runs/13641172744/job/38131193209

======================================================================
FAIL: test_no_memory (test.test_list.ListTest.test_no_memory)
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Traceback (most recent call last):
  File "/home/runner/work/cpython/cpython-ro-srcdir/Lib/test/test_list.py", line 328, in test_no_memory
    self.assertIn("MemoryError", err.decode("utf-8"))
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 'MemoryError' not found in 'python: ../cpython-ro-srcdir/Objects/object.c:2990: _Py_Dealloc: Assertion `tstate->current_frame == NULL || tstate->current_frame->stackpointer != NULL\' failed.\nFatal Python error: Aborted\n\nCurrent thread 0x00007faf0c6f3740 (most recent call first):\n  File "<string>", line 7 in <module>\n\nExtension modules: _testcapi (total: 1)\n'

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cpython/Objects/object.c

Lines 2980 to 2991 in 3a7f17c

	void
	_Py_Dealloc(PyObject *op)
	{
	PyTypeObject *type = Py_TYPE(op);
	destructor dealloc = type->tp_dealloc;
	#ifdef Py_DEBUG
	PyThreadState *tstate = _PyThreadState_GET();
	#ifndef Py_GIL_DISABLED
	/* This assertion doesn't hold for the free-threading build, as
	* PyStackRef_CLOSE_SPECIALIZED is not implemented */
	assert(tstate->current_frame == NULL || tstate->current_frame->stackpointer != NULL);
	#endif

cc @markshannon

[colesbury]

Ugh, sorry, looked at the wrong job while trying to track down flaky tests.