bug#23632: 25.1.50; Gratuitous undo boundary in latex-insert-block

[Eli Zaretskii]

> From: phillip.lord@russet.org.uk (Phillip Lord)
> Cc: monnier@iro.umontreal.ca,  cyd@gnu.org,  23632@debbugs.gnu.org
> Date: Tue, 07 Jun 2016 12:20:27 +0100
> 
> It happens like this:
> 
> call some command
> command changes local buffer
> command asks for more information from minibuffer with recursive edit
> change in the minibuffer forces undo-boundary into local buffer
> 
> So, you get an undo-boundary where you did not expect.
> 
> With this change:
> 
> call some command
> command changes local buffer
> command asks for more information
> changes in minibuffer force undo-boundary only in mini-buffer

OK, thanks for the explanations.  The changes are okay for the
emacs-25 branch.