A seemingly related problem has just caught me.

Using a FileContentsBrowser I had 'remove existing' to compare a .st
file with the contents of my image. Sometime in the process of browsing
the remaining list of changes I got a walkback as in the attached
debug.log; note that the problem is that nobody understands #Definition
again.

If you look in CodeHolder>didCodeChangeElsewhere you'll see that the
same #selectedMessageName is the likely culprit.

Who actually knows what is the intended behaviour here? 

 tim
-- 
Tim Rowledge, tim at sumeru.stanford.edu, http://sumeru.stanford.edu/tim
Useful random insult:- Immune from any serious head injury.
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