groups: propagate remove correctly
=/ ship (~(get by synced.state) pax.diff)
?~ ship [~ state]
?. =(src.bol u.ship) [~ state]
- ?. (~(has in members.diff) our.bol) [~ state]
+ ?. (~(has in members.diff) our.bol)
+ :_ state
+ [(group-poke pax.diff diff)]~
=/ changes (poke-group-hook-action [%remove pax.diff])
:_ +.changes
%+ welp -.changes
