4.14.5 gets me a garbled desktop

Bisecting brought me to

 168cf03a26db673503558e0518c1790911396fac is the first bad commit 
  commit 168cf03a26db673503558e0518c1790911396fac
  Author: Michael Banack <bob5972@banack.net>
  Date:   Wed Aug 5 07:11:17 2020 -0700
 
      Fix errorTrap leak in free_win_data

I reported a Debian bug as well.

Reverting this commit gets me back to my usual Desktop