In GNU Emacs 27.0.50 (build 23, x86_64-pc-linux-gnu, X toolkit, Xaw scroll bars)
 of 2019-07-30 built on minid
Repository revision: 3a59cc84069376802ba8fd731b524d78db58262c
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.11902000
System Description: Debian GNU/Linux 9 (stretch)

Recent messages:
Error during redisplay: (jit-lock-function 18) signaled (args-out-of-range 1 1)
Continuing.
c-clear-string-fences: Args out of range: 1, 1