100% CPU usage after a modifier key is pressed
This problem appeared a few days ago and it has not disappeared since that.
Each time I press a modifier key (Shift, Alt, Ctrl) in Gajim conversation window, it eats up 100% CPU and, usually, stops showing me what I type, what I recieve and what I send. It sends what it should (i.e. it sends a message when I enter [Enter]) but shows nothing.
And it's strange, but what helps is... switching to any other working application (e.g. gnome-terminal). After that, one can switch back to Gajim and everything what was typed is shown, everything works fine until... a modifier key is pressed again. And, again, switching and switching back helps.
I have no idea what can cause this issue. It affects only Gajim.