[Bf-committers] Undo on Text objects.

[joeedh]

Hi.  Performing CTRL-Z on Text objects does unpredictable things.  It 
should (I think, I'm not exactly sure) remove the last charecter 
written, or the last word (if anyone wants to code that).

Instead, it is doing these things on a unpredictable (to mo) basis:
a): Removes the whole text buffer if you just created it.
b): Does nothing.
c): Remove a large chunk of just-written code.

I don't think that Text objects should make use of the new undo code.

joeedh