diff -r 3b1da2848fc7 -r d3bac044e0f0 src/gui/effects/qgraphicseffect.cpp
--- a/src/gui/effects/qgraphicseffect.cpp	Fri Feb 19 23:40:16 2010 +0200
+++ b/src/gui/effects/qgraphicseffect.cpp	Fri Mar 12 15:46:37 2010 +0200
@@ -383,9 +383,9 @@
 {
     if (m_cachedMode != QGraphicsEffect::PadToEffectiveBoundingRect
         && (reason == EffectRectChanged
-            || reason == TransformChanged
-               && m_cachedSystem == Qt::LogicalCoordinates))
+            || (reason == TransformChanged && m_cachedSystem == Qt::LogicalCoordinates))) {
         return;
+    }
 
     QPixmapCache::remove(m_cacheKey);
 }