bug#39291: M-: history doesn't store erroneous input

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Date: Wed, 29 Jan 2020 01:35:33 +0200
> Cc: 39291@debbugs.gnu.org
> 
> > M-: (oops-i-forgot-to-type-the-closing-paren RET
> > => End of file during parsing
> >
> > Error itself is fine, but the problem is if you now
> > type M-: again, you won't find your input in the
> > history and have to retype everything from scratch
> > instead of just fixing the typo.
> >
> > This is a regression in trunk compared at least to
> > 26.3.
> 
> This was changed by
> http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=9042ece787c
> via https://debbugs.gnu.org/cgi/bugreport.cgi?bug=38317#23
> and https://lists.gnu.org/archive/html/emacs-devel/2019-12/msg00241.html

Federico, please look into fixing this regression.

TIA