"Member left" should be marked as read automatically

[link2xt]

Since #5629 chats are not sorted to the top when someone leaves the group, but message is marked as unread. On desktop this results in the badge constantly saying that I have 1 unread message, but it is difficult to find the chat which has unread message because it is somewhere in the chatlist not close to the top.

[iequidoo]

No, it was suggested in #5618 not to sort the chat up on a "group left" message, but it's not implemented in #5629 because, citing myself

If i added someone to a group then it may be interesting to me that they have left the group.

, so i'd suggest at least to check who added the member to the group, but this is not always possible because the member may be "synced in" by the group membership consistency algo (so the member could be added even by user's other device) or because of ephemeral messages enabled.

So, i'm not sure the bug you described is related to the above PR even if you compiled your Desktop with it.

[link2xt]

Not sure what happened because I was not running #5618
Let's close this for now.