I don't know how to tell, but it seems the bug happens when the prompt has effect on the title of the window. What I mean here: opening a gnome-terminal with a colourful PS1 causes this. However if I ssh into another machine which does update the title of the window and the prompt does not use colour, the shrinking stops if I try fullscreen/back cycles again ... If I ssh into a machine which does have this "new" colour prompt then it continues ... If I ssh into a machine which does not effect the title bar, it does not effect the strange behaviour though. So, what I can think about there is some connection about the window bar title updating by the prompt (???) sorry, I have really no idea hot it happens :-O
I don't know how to tell, but it seems the bug happens when the prompt has effect on the title of the window. What I mean here: opening a gnome-terminal with a colourful PS1 causes this. However if I ssh into another machine which does update the title of the window and the prompt does not use colour, the shrinking stops if I try fullscreen/back cycles again ... If I ssh into a machine which does have this "new" colour prompt then it continues ... If I ssh into a machine which does not effect the title bar, it does not effect the strange behaviour though. So, what I can think about there is some connection about the window bar title updating by the prompt (???) sorry, I have really no idea hot it happens :-O