bug#57161: 28.1.91; two column windows merge leaves 2nd column window showing

[Eli Zaretskii]

> Date: Fri, 12 Aug 2022 19:43:01 +0000 (UTC)
> From: Van Ly <van.ly@sdf.org>
> cc: 57161@debbugs.gnu.org
> 
> On Fri, 12 Aug 2022, Eli Zaretskii wrote:
> 
> >
> > Where does this say that the other window gets deleted?
> 
> I expect F2 2, F2 1 will get me back to the frame and window 
> layout at the moment before F2 2.

That's not what "F2 1" does.

> Before pressing F2 2, a new file called "text.text" is in text mode.
> 
> Pressing F2  2, F2 1,  leaves the  file in Text  2C mode and  that 2nd
> column window is  pushed to the side.   Is there a way to  get back to
> plain text mode  and the original one window?

Yes: "C-x 1".