Production Garrison respects the 20% health health rule ... and my event progress kinda reset

Decided to fire up AoE2 to test if production garrisons (i.e. that you can garrison units by setting a gather point inside the building making them) respects the 20% health eject rule.

They do, thanks to an enemy seige ram and a lonely house and barrack combo helping.

... also, like my game thinks I need to do the summer event achievements, despite having all the mods and icons from when I finished it like a week ago.