bug#25851: 25.2; GTK warning when starting Emacs when desktop file has more than one frame

[Eli Zaretskii]

> From: nljlistbox2@gmail.com (N. Jackson)
> Cc: Eli Zaretskii <eliz@gnu.org>,  25851@debbugs.gnu.org
> Date: Fri, 24 Mar 2017 16:28:54 -0400
> 
> These antics are different from with Emacs 25 where I never see a
> light-colour-scheme frame unless I start with `-Q'.

Could be the result of double-buffering implemented on master.  What
was the date your previous master-derived version was built?  If that
was before January, it could be before double-buffering was pushed.
Try disabling that via initial-frame-alist in your .emacs and see if
doing that helps.