[Qt-interest] QListWidget.clear OK in 10.5, but not repainting in 10.6

[Tony Rietwyk]

Hi Everybody, 

My users are reporting an issue with an application when running on Mac OSX 10.6, Qt 4.6.0.  I believe it was built using carbon, but will not be able confirm this until tomorrow.  

I have a QComboBox which on_currentIndexChanged clears a QListWidget and populates it.  On 10.5 it works, and only the new items appear in the QListWidget.  On 10.6 users report seeing a mix of old and new items appear.  Clicking in the QListWidget forces a repaint and only the new items appear.  

Has anyone else seen this behaviour?  It might be related to QTBUG-6390.  In my case the QListWidget is also an indirect child of a QTabWidget page.  

Tony.