bug#21469: 25.0.50; right scrollbar wrongly placed when resizing split window

[martin rudalics]

> emacs -Q
> C-x 3 # split-window-right
> Then use the mouse to move the horizontal separator in the middle of
> the mode-line to the left. The frame stays the same size, but the
> right scrollbar moves inwards from the right edge. It also appears
> that the right scrollbar controls the window to the left, not the
> window to the right.
>
> This is with git emacs commit 166812addb0a1b9b2258ef3ce76424cd7facfa8b
>
> If I rebuild using ‘--without-toolkit-scroll-bars’ everything works as
> expected.
>
> In GNU Emacs 25.0.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.14.13)
>   of 2015-09-13

Robert, is this still an issue?

martin