Records the catalogue jump and, more usefully, why the midiviz complaint
survived its first fix: there were two things restarting it, and the latch only
answered one. The unit's Restart=always came from a real bug (an unplugged LCXL
exiting cleanly and taking the window with it for a session), so the fix had to
keep that and still let a person close the thing -- which is what a distinct
exit status is for.

Also writes down the tree's deliberate half-state, since a cold reader running
pytest in the shared checkout will hit an aborted collection that is fixed on
master and looks alarming otherwise.