This bug has been here for a long time!
It's intermittend and apperars when you run dbms output.
You're getting 2 windows to choose connection from
What version are you seeing this in?
Unfortunately I'm not able to reproduce that behavior. You say for a 'long time' - like how many versions back?
I Don't remember exactly, but version 3.2.20 had it - of course it's a minor problem, but annoying anyway.
Is it possible to send a screen-dump to this forum to show the behavior.
Sure, just use a public free photo/image sharing site and use the URL button in the toolbar.