[Qt-creator] window resizes when start debugging

[Gena Bug]

Hi!

I've noticed a new behavior in 4.8.1 -- when starting a debug session 
the window is automatically widened to show you the variables in a 
current scope. But it doesn't restore to the previous width after you 
finish the debugging. Is it a bug or intended behavior? If last is true 
then how can I turn it off?

Debian testing amd64 with KF5, QtC 4.8.1 for linux x86_64, downloaded 
from the official site.