bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay

[Eli Zaretskii]

> From: Ihor Radchenko <yantar92@posteo.net>
> Cc: 59902@debbugs.gnu.org
> Date: Thu, 15 Dec 2022 10:53:19 +0000
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> The above snippet creates a buffer with image FILE, reverts it if
> >> necessary (`find-file-noselect' should do it), and returns the image
> >> data that is guaranteed to be up-to-date with the actual file.
> >
> > Then why do you think it will cause slowdowns?  Especially if you
> > call find-file-noselect with its 3rd argument non-nil, as I think you
> > should anyway?
> 
> Hooks will be executed first time an image is opened. This may cause
> slowdowns when there is a huge number of inline images in the buffer,
> first time they are displayed.

Which hooks are we talking about here?