Zhiyi Zhang (@zhiyi) commented about dlls/comctl32/tests/treeview.c:
- while (GetMessageA(&msg, 0, 0, 0))
 - {
 TranslateMessage(&msg);DispatchMessageA(&msg);if((msg.hwnd == treeview) && (msg.message == WM_LBUTTONDOWN))break;- }
 - flush_events();
 - ok_sequence(sequences, TREEVIEW_SEQ_INDEX, test_click_delete_seq, "treeview click and destroy sequence", TRUE);
 - flush_sequences(sequences, NUM_MSG_SEQUENCES);
 - SetCursorPos(orig_pos.x, orig_pos.y);
 - g_click_delete_test = 0;
 - if (!IsWindow(treeview))
 
Can this happen?