Subject: bug#28652: 26.0.60; Display often "flashes" due to double buffering when switching to Emacs frames

From: martin rudalics <[email-masked]>
Date: Sun, 01 Oct 2017 10:24:06 +0200

> Yes, I built from the release branch (emacs-26) on 2017-09-24 at
 > commit d93301242f38d3d9aaa55899c07496f0bdecf391.
 >
 > The commits you mention were made 2017-08-27 and 2017-09-26
 > respectively, but neither of them seem to be in the emacs-26
 > branch.

Then this was pure coincidence and you're facing a more general issue
with double buffering.

martin