Re: momentary-string-display

[Richard Stallman]

    As I meant to say, the same heuristic can be used by replacing the
    reference to insert-end with (+ pos (length string)) -- as long as
    the new call to overlay-put causes a redisplay that updates window-end
    just as the original call to insert does.

I just made a change in window-end which I think will make it handle
that case correctly.

So let's have your patch and install it.