Subject: bug#34819: 26.1; Blank help-echo tooltips for mode line menus

From: YAMAMOTO Mitsuharu <[email-masked]>
Date: Thu, 20 Jun 2019 18:17:58 +0900

On Thu, 20 Jun 2019 14:01:54 +0900,
YAMAMOTO Mitsuharu wrote:
> 
> The contents of the tooltip seems to be usually shown by the
> flush_dirty_back_buffers call from handle_one_xevent.  But the control
> does not go back to read_socket_hook during menu tracking, so
> flush_dirty_back_buffers is not called in such a case.

The argument was too rough, actually.  During menu tracking,
handle_one_xevent is called via popup_get_selection and
x_dispatch_event.  Difference should come from other places.

				     YAMAMOTO Mitsuharu
				[email-masked]