I need word wrap in a dialog of my app,
so I changed a LineEdit to a TextCtrl in layout editor.
That doesn't work. The ctrl frame shows garbage, i.e.
random content from some other visible window. So window
refresh somehow doesn't work. What am I missing here?
I attached a sample app. That's not the actual app I'm
developing right now. Just a toy app I did for learning
some time ago, which I modified for confirming the problem.