Don't mess with destroyed windows.

SVN revision: 15064

src/E.h

@@ -507,6 +507,7 @@ struct _eobj
    char                sticky;
    char                floating;
    char                shown;
+   char                gone;
 #if USE_COMPOSITE
    char                shadow;	/* Enable shadows */
    unsigned int        opacity;

src/ecompmgr.c

@@ -1306,7 +1306,7 @@ ECompMgrWinDel(EObj * eo, Bool gone, Bool do_fade __UNUSED__)
      }
    else
      {
-	if (Conf_compmgr.mode == ECM_MODE_WINDOW)
+	if (!eo->gone && Conf_compmgr.mode == ECM_MODE_WINDOW)
 	   XCompositeUnredirectWindow(disp, eo->win, CompositeRedirectManual);
      }
 

src/eobj.c

@@ -227,6 +227,7 @@ void
 EobjWindowDestroy(EObj * eo)
 {
    EDestroyWindow(eo->win);
+   eo->gone = 1;
    EobjDestroy(eo);
 }