Comment 3 for bug 1675988

Okay, we misused an icon, but as far as the users are concerned, the functionality before worked OK, the functionality before does not work OK. Let's replace it with one of those expand/collapse icons then, but the feedback is clear, the old behaviour needs to come back. There's no real reason to use up more real estate either by adding an option to completely close it - completely closing it was not a feature that was requested.