bug#66993: [PATCH] project.el: avoid asking user about project-list-file lock

[Spencer Baugh]

Juri Linkov <juri@linkov.net> writes:
>> But actually, maybe it's time that we just enable savehist by default.
>
> Have you considered using define-multisession-variable?
> What are pros and cons?

That seems like a good idea too.  I'll try putting together a patch
which uses define-multisession-variable for project--list.

If project--list becomes a minibuffer history variable and also is a
multisession variable, though, perhaps savehist-mode would interact
poorly.  (Then again, maybe instead of enabling savehist mode by
default, we should just define-multisession-variable file-name-history?)