Re: 23.0.50; newsticker buffer doesn't refresh

[Richard Stallman]

    In the *newsticker* buffer that is now current, movement commands such as
    n or <down> appear to have no effect, but the effect becomes apparent
    following a C-l.  Alos, the scroll bar is not rendered properly.

I suspect that this is all caused by a single display bug.
Can you help determine which change caused the bug to appear?

This is the sort of thing on which various people can work in parallel.

A binary search thru the versions since the last one known not
to have this bug would do the job.