Subject: RE: 26.0.50; Line numbers implemented natively disappear momentarily when, frame out of focus

From: jonas <[email-masked]>
Date: Fri, 21 Jul 2017 19:49:19 +0200

I can replicate this behavior using flycheck and flycheck-pos-tip enabled.
Place mark at anything marked with a squiggly line, wait for the pop up, 
1-2 seconds later
line numbers disappear.

Using  GNU Emacs 26.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version 
3.18.9) of 2017-07-17