Martin Brennan 177d8dfcd1
FIX: Improve chat membership update on deleted message (#21716)
Followup to c908eeacc96e947025176c1744ee4071ee252b91

Instead of using the latest message ID in the channel, which
could cause issues if you have an earlier last read message ID
that matches the deleted one, instead we use the first non-deleted
message that comes before the deleted message by ID.
2023-05-24 10:31:15 +02:00
..
2023-05-11 23:27:26 +02:00