Your bug report

#21730: 25.0.50; Random errors in redisplay--pre-redisplay-functions

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 21730@debbugs.gnu.org.

-- 
21730: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21730
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems