bug#53298: 29.0.50; GTK3 frame stops updating

[Ross Vandegrift]

On Mon, Jan 17, 2022 at 10:39:53AM +0100, martin rudalics wrote:
> > No, that didn't help.  Reverting 483c5e953c as suggested in #49955 does 
> > though.
> > I mucked with the revert a bit, the issue is skipping the the FocusIn 
> > handling
> > on GTK.
> >
> > The minimal working revert is below.  Not sure if this is safe for the other
> > issue through.
> 
> Thanks.  I attach a diff against Emacs 28 for this.  Can you try it?
> You would have to set the variable 'x-set-frame-visibility-more-laxly'
> to either 'focus-in' or 't' to see the effect.

Yep, this works.  Thanks!

Ross