Small bug with multiple tabbed windows upon update to latest version

I was updating my SSBs and ran into this little bug consistently for every SSB that had multiple tabs open:

Series of events:
- Open old SSB version
- Automatic alert of update (very nice new version, by the way)
- Download and install
- Relaunching application
- Receive dialog alerting me to the fact that I have multiple tabs open and asking me if I wish to proceed (normal behavior)
- Click "Close" button (everything is fine and dandy so far)
- SSB quits
- First SSB launch (this throws an error when it tries to close itself automatically)
- Second SSB launch

The error I'm encountering is this: http://img.skitch.com/20080626-2cdb3k...

In addition to the error dialog, it is displaying the normal "multiple tabs open" alert dialog, so I'm guessing that somehow the "first relaunch" of the SSB encounters that when it tries to close itself and doesn't know what to do with those extra tabs.

("Picture 5.png" in the sidebar of Preview shows the two icons side by side in the dock. I did not encounter any problems aside from the fact that the first "SSB" didn't know what to do with multiple tabs when it tried to quit itself).

Let me know if I need to explain better. This whole thing isn't really a big deal, and you may already know all about it, but I thought I'd let you know anyways.

Awesome work on the update! (I'm especially fond of the fact that "Block Popups" and "Only Accept Cookies..." are set by default. Kudos =)