[Bug 48226] Re: auto-hidden panel sometime jumps to the top of the screen

[Зоран Рилак]

I can confirm the issue stated here.  I use a panel on the right side of
the screen and it sometimes moves off to the left after the pointer
leaves it "too fast" (definition needed here).  It's easy to reproduce
by setting "[un]hide delay" properties to 0 and then rotating your mouse
against the edge of the screen where the panel is hidden, making it show
up and go back in quick succession.  Panel's "position" property remains
unchanged though.

-- 
auto-hidden panel sometime jumps to the top of the screen
https://launchpad.net/bugs/48226