Crash switching back and forth between morph and syntax search

I can't reproduce the crash, but I had a lot of windows open.  There wasn't a snapshot saved so I can't reproduce the layout.

1. Opened search window
2. clicked on morph search
3. clicked on syntax search
4. clicked on morph search
5. clicked on syntax search
6. crash

I have encountered this (or a similar) problem. After switching back and forth and typing something into the morph search box... CRASH.