GNU Emacs 23.3.1 problem with 20111213 snapshot

[Jim Reisert AD1C]

I'm having a problem with the 20111213 snapshot.  I'm running GNU
Emacs 23.3.1 (emacs-x11) in a Cygwin-X window

If I try to reverse-search inside a file (control-R) and the search
string is no longer found, after a couple more tries (more control-R),
the Emacs window will close and disappear.  There is no core dump.
Fortunately, the times when this happened, I had already saved the
buffer.

This is fairly repeatable.

-- 
Jim Reisert AD1C, <jjreisert@alum.mit.edu>, http://www.ad1c.us

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