jquery/jquery-ui — pull request #539 by lotjuh (2011-11-29 13:58:36+00:00)
Title: Tooltip got reopened after being closed when using ajax content

I ran into a bug when using the tooltip with ajax content and noticed some code was removed from previous versions that was actually needed to prevent this bug from happening so I added it back.
When you would move over a tooltip element, it would still open up even after your mouse had moved over it. This was caused by the wait time for the ajax content so the _open function would be called after the tooltip had already been closed.