bug#45834: 28.0.50; Mouse events in terminal emacs

[Eli Zaretskii]

On January 19, 2021 8:38:07 AM GMT+02:00, Lars Ingebrigtsen <larsi@gnus.org> 
wrote:
> Brady <bug-gnu-emacs_at_gnu.org@tangential.info> writes:
> 
> > I just tested in a debian VM as well, with snapd's emacs 27.1, and
> the
> > same issue occurs, C-h k, then M-TAB to switch to other application
> > shows ESC [ I- in minibuffer. Similarly issue is seen with
> > TERM=xterm-256color but not with rxvt.
> 
> I can reproduce this with Emacs 28, too.
> 
> emacs -Q -nw
> C-h k
> *click in a different window*

I think it's the focus-in event that we somehow mishandle.  See xterm.el, 
search for "\e[I" (without the quotes).