diff -urN qt-x11-opensource-src-4.3.5.orig/src/gui/itemviews/qitemselectionmodel.cpp qt-x11-opensource-src-4.3.5/src/gui/itemviews/qitemselectionmodel.cpp
--- qt-x11-opensource-src-4.3.5.orig/src/gui/itemviews/qitemselectionmodel.cpp	2008-09-02 16:12:14.000000000 +0400
+++ qt-x11-opensource-src-4.3.5/src/gui/itemviews/qitemselectionmodel.cpp	2008-09-02 18:08:15.000000000 +0400
@@ -1058,10 +1058,14 @@
     if (d->ranges.count() == 0 && d->currentSelection.count() == 0)
         return;
     QItemSelection selection = d->ranges;
-    selection.merge(d->currentSelection, d->currentCommand);
+    if (!signalsBlocked()) {
+        selection.merge(d->currentSelection, d->currentCommand);
+    }
     d->ranges.clear();
     d->currentSelection.clear();
-    emit selectionChanged(QItemSelection(), selection);
+    if (!signalsBlocked()) {
+        emit selectionChanged(QItemSelection(), selection);
+    }
 }