bug#36894: Restore frameset focus and selectedness

[martin rudalics]

> I see that the MATE window manager doesn't select the new frame after
>
>    (make-frame '((no-focus-on-map . t)))
>
> Then I don't understand the logic of make-frame-command:
>
>    (defun make-frame-command ()
>      (interactive)
>      (if (display-graphic-p)
>          (make-frame)
>        (select-frame (make-frame))))
>
> On a graphic display it doesn't select the new frame explicitly,
> maybe on the assumption that all window managers should select it
> afterwards?

IIUC it intentionally doesn't care and doesn't make any guarantees.
See the info on 'make-frame':

     This function itself does not make the new frame the selected
     frame.  *Note Input Focus::.  The previously selected frame remains
     selected.  On graphical terminals, however, the windowing system
     may select the new frame for its own reasons.

martin