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

[Eli Zaretskii]

> Date: Fri, 12 Aug 2022 19:10:40 +0000 (UTC)
> From: Van Ly <van.ly@sdf.org>
> cc: 57161@debbugs.gnu.org
> 
> > Which part of the 2C mode documentation led you to expect to see just
> > one window after "F2 1"?
> 
> The documentation says the following.
> 
> ```
> 
>       When you have edited both buffers as you wish, merge them with ‘<F2>
>    1’ or ‘C-x 6 1’ (‘2C-merge’).  This copies the text from the right-hand
>    buffer as a second column in the other buffer.  To go back to two-column
>    editing, use ‘<F2> s’.
> 
> ```

Where does this say that the other window gets deleted?

> Documentation  and  actual behavior  drift  apart  is a  common  place
> expectation in  software.  My familiarity  with C-x 1 carried  over to
> C-x 6 1.

In this case, extrapolating from "C-x 1" leads to incorrect
expectations.

I see no bug in the current behavior of "F2 1".