I'm not sure whether it's a bug or I'm missing something, but:
jQuery: 1.11.3 and lower
Affected browsers: latest Chrome, latest Firefox, latest IE (that's what I tested with, probably all are affected)
OS: Windows 7 x64
How to reproduce:
1. Add an anchor element with name and title.
2. Add tooltips to document in $(document).ready (if you try to avoid the anchor with :not, it doesn't work).
3. Open page with the #name in the URL.
It will show a tooltip for the anchor that can be closed when you click on it. Expected - it shouldn't be shown at all.
If you use $(window).load instead of $(document).ready, it works better - it's shown only when you switch browser tabs. :not still doesn't do anything though.
Same thing happens in 1.12 RC. If I choose to use the git version in JSbin, $(document).ready tooltips works like $(window).load and $(window).load tooltips don't work at all.