From 1dd2bc2500aed06c163272598a3ecbed4d49fa2c Mon Sep 17 00:00:00 2001
From: Adam Endrodi <ext-adam.endrodi@nokia.com>
Date: Mon, 24 Jan 2011 19:50:13 +0200
Subject: destroy unused property cache

We left an unused MWindowPropertyCache in prop_caches, causing the
Q_ASSERT() failure hidden by 21bee47953a85736892fca5b2339c8f5a86047bf.

 * src/mcompositemanager.cpp (MCompositeManagerPrivate::mapEvent):
   Delete wpc if after all we don't wish to manage the window.
---
 src/mcompositemanager.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/mcompositemanager.cpp b/src/mcompositemanager.cpp
index ae8924b..ea47567 100644
--- a/src/mcompositemanager.cpp
+++ b/src/mcompositemanager.cpp
@@ -2433,9 +2433,12 @@ void MCompositeManagerPrivate::mapEvent(XMapEvent *e)
     }
 
 stack_and_return:
-    if (!pc || (e->event != QX11Info::appRootWindow()) || !item)
+    if (!pc || (e->event != QX11Info::appRootWindow()) || !item) {
         // only handle the MapNotify sent for the root window
+        prop_caches.remove(win);
+        delete wpc;
         return;
+    }
 
     bool stacked = false;
     if (configure_reqs.contains(win)) {
-- 
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