bug#38642: 'C-x RET c' gets stuck in universal-argument loop

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: Andreas Schwab <schwab@linux-m68k.org>,  juri@linkov.net,
>   38642-done@debbugs.gnu.org
> Date: Fri, 20 Dec 2019 17:52:17 -0500
> 
> > Stefan, any ideas for how to fix this unintended consequence?
> 
> I installed a patch which seems to fix it.  We should rewrite this
> function completely, but I tried to minimize the changes for now.

Thanks.  I think a more radical change could be installed after the
release branch is cut.