Orientation change doesn't resize Qt fullscreen apps properly (regression from 4.6.2)

Phone: Nokia 5800
Qt: Qt 4.6.3 for Symbian (blacteam testing pkg 01)

• Start two Qt apps where one of them is shown with showFullscreen()
• Trying changing orientation on the phone in the fullsceen app and notice it works fine
• Switch to the other app and kill it with red Cancel key (not exit)
• Switch back to fullscreen app
• Notice now how orientation changes don't work properly anymore (see attached picture)

This is a regression compared to Qt 4.6.2 (tested)