bug#34038: 26.1; set-window-start sometimes fails to set window start

[Alan Mackenzie]

Hello, Eli.

On Sat, Jan 12, 2019 at 22:29:25 +0200, Eli Zaretskii wrote:
> > Date: Sat, 12 Jan 2019 18:22:03 +0000
> > From: Alan Mackenzie <acm@muc.de>
> > Cc: Markus Triska <triska@metalevel.at>, 34038@debbugs.gnu.org

> > The question remains, what is causing the unexpected scrolling in
> > the OP's scenario?

> Almost certainly the fact that the last window's line is not 100%
> visible.

No, it's not that, or at least, not only that.  I see the scrolling on
my Linux tty, where lines cannot be partially visible.

-- 
Alan Mackenzie (Nuremberg, Germany).