Re: Missing snprintf in ucrt mingw + vc-refresh in find-file hook?

[Eli Zaretskii]

> Date: Wed, 14 Feb 2024 19:01:10 +0200
> Cc: arthur.miller@live.com, emacs-devel@gnu.org
> From: Dmitry Gutov <dmitry@gutov.dev>
> 
> > My point is that find-file-hook has an explicit and very specific
> > trigger for fetching the VC information, whereas doing that from the
> > mode line doesn't have that advantage, and will probably need to call
> > VC much more frequently in order not to miss changes.
> 
> Again: the backend and state are cached. Why would VC be called more?

How do you know when the cache is stale and needs to be refreshed, if
the only purpose is to show the info on the mode line?