Remove clearing of the window menu id for now. This will need more
work.

controls/menu.c

diff --git a/controls/menu.c b/controls/menu.c
index 4acaf49..13f7d85 100644
--- a/controls/menu.c
+++ b/controls/menu.c
@@ -3844,9 +3844,6 @@
 
         if (!lppop) return FALSE;
 
-	/* unregister menu in owning window */
-	SetWindowLongA( lppop->hWnd, GWL_ID, 0 );
-
         lppop->wMagic = 0;  /* Mark it as destroyed */
 
         if ((lppop->wFlags & MF_POPUP) && lppop->hWnd)