bug#48659: Escapes are deleted after executing "dired-toggle-read-only" in *Find* buffer

[Eli Zaretskii]

> From: Michael Heerdegen <michael_heerdegen@web.de>
> Cc: Rodrigo Morales <moralesrodrigo1100@gmail.com>,  48659@debbugs.gnu.org
> Date: Thu, 27 May 2021 16:01:49 +0200
> 
> For me only file names that were actually edited get the space char
> removed (master may behave differently here because wdired had been
> changed recently to avoid the initial delay in large dired buffers when
> entering wdired, that may have an effect, but I don't expect it's
> related otherwise).

So the problem is somewhere in wdired.  Analysis and patches are welcome.