Description of problem:
evince doesn't destroy tooltips belonging to a document if you close the
document window.

Version-Release number of selected component (if applicable):
evince-0.8.2-1.fc7

How reproducible:
Every time

Steps to Reproduce:
1. Open any document in evince
2. Open another document in evince that has/uses tooltips
3. While the tooltip is showing, close the document, leaving the initial one open
  
Actual results:
Tooltips remain on the screen until all evince documents are closed

Expected results:
Tooltips should be destroyed as the generating document is closed

Additional info:
I saw this with PDFs, but there's no reason I can think of that other document
types would result in this.