Comment 24 for bug 1767826

#23: In the last failed session I definitely did not use Clean-up tracks, Global deletion, or Append board. I opened an board already complete, started to widen the tracks and make "trimming": small dragging tracks, sometimes re-route connections to a more tidy different track. It took about 2 hours to crash it.
I'm just downloading your fat debug code...coming back later.