diff -r cc75c76972ee -r c0432d11811c src/gui/graphicsview/qgraphicsproxywidget_p.h
--- a/src/gui/graphicsview/qgraphicsproxywidget_p.h	Wed Apr 21 12:15:23 2010 +0300
+++ b/src/gui/graphicsview/qgraphicsproxywidget_p.h	Wed Apr 21 20:15:53 2010 +0300
@@ -72,6 +72,7 @@
           enabledChangeMode(NoMode),
           styleChangeMode(NoMode),
           paletteChangeMode(NoMode),
+          tooltipChangeMode(NoMode),
           focusFromWidgetToProxy(0)
     { }
     void init();
@@ -117,6 +118,7 @@
     quint32 enabledChangeMode : 2;
     quint32 styleChangeMode : 2;
     quint32 paletteChangeMode : 2;
+    quint32 tooltipChangeMode : 2;
     quint32 focusFromWidgetToProxy : 1;
     quint32 proxyIsGivingFocus : 1;
 };