bug#62427: tab-bar-new-tab-to now handles cases with multiple side-windows

[Juri Linkov]

> After thinking about this, I'm very uncomfortable with removing window
> parameters like that.  These windows don't belong to us, right?  They
> are windows that just happen to be there when the user creates a new
> tab.  So arbitrary removal of their parameters behind the back of the
> user and possibly some Lisp program which set these parameters is not
> TRT.
>
> Can't we create a completely new window and show the buffer in it?
> That new window then can have any parameters we want, since it's new.
>
> Or am I missing something?

Sometimes the window configuration gets into such inconsistent state
that the minibuffer window remains on the window list while the
minibuffer is not active.  Then creating a new tab fails with
such error:

Debugger entered--Lisp error: (error "Specified root is not an ancestor of 
specified window")
  delete-other-windows-internal(#<window 4 on  *Minibuf-1*> #<window 5 on 
*scratch*>)
  delete-other-windows()
  tab-bar-new-tab-to()
  tab-bar-new-tab()

Please fix this bug as well.