SVN commit 760132 by aacid:

backport r760130
****************
we also need to check for the current extension so that in case the current extension is a .foo.bar we don't duplicate .foo
lastExtension is there for a similar purpose but only when changing the current file type thorugh the combo


 M  +2 -0      kfilewidget.cpp  


--- branches/KDE/4.0/kdelibs/kfile/kfilewidget.cpp #760131:760132
@@ -1828,6 +1828,8 @@
         // catch "double extensions" like ".tar.gz"
         if (lastExtension.length() && fileName.endsWith (lastExtension))
             fileName.truncate (len - lastExtension.length());
+        else if (extension.length() && fileName.endsWith (extension))
+            fileName.truncate (len - extension.length());
         // can only handle "single extensions"
         else
             fileName.truncate (dot);