bug#17046: 24.3.50; On startup emacs frame has no minibuffer or windows decorations

[martin rudalics]

> Aha!! adding (read-event nil nil 1) to bug17046.el instead of the
> sit-for replicates the bug - it looks ok on startup but when I move
> the mouse into the frame I lose the decorations and the minibuffer!
>
> This is with
>
>      (visibility . t)
> and :force-onscreen nil

This should give us something at last but I don't yet know what.  Please
just post that bug17046.el here so we can strip it.

martin