Sorry, I got the sense of the test wrong last time.

from preamble:

"Change Set:		StringChangedFix-nk
Date:			12 October 2001
Author:			Ned Konz

This fixes an error in my prior attempt.

In Change Set 4393StringMorphOptimize-nk
I missed a changed message in the case where
the StringMorph doesn't change size. This fixes
that problem and still avoids sending multiple changed messages for a
single change."!
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