Do not update channel message count for team add/remove message (#10225)

store/sqlstore/post_store.go

@@ -117,7 +117,8 @@ func (s *SqlPostStore) Save(post *model.Post) store.StoreChannel {
 			if post.Type != model.POST_JOIN_LEAVE && post.Type != model.POST_ADD_REMOVE &&
 				post.Type != model.POST_JOIN_CHANNEL && post.Type != model.POST_LEAVE_CHANNEL &&
 				post.Type != model.POST_JOIN_TEAM && post.Type != model.POST_LEAVE_TEAM &&
-				post.Type != model.POST_ADD_TO_CHANNEL && post.Type != model.POST_REMOVE_FROM_CHANNEL {
+				post.Type != model.POST_ADD_TO_CHANNEL && post.Type != model.POST_REMOVE_FROM_CHANNEL &&
+				post.Type != model.POST_ADD_TO_TEAM && post.Type != model.POST_REMOVE_FROM_TEAM {
 				s.GetMaster().Exec("UPDATE Channels SET LastPostAt = :LastPostAt, TotalMsgCount = TotalMsgCount + 1 WHERE Id = :ChannelId", map[string]interface{}{"LastPostAt": time, "ChannelId": post.ChannelId})
 			} else {
 				// don't update TotalMsgCount for unimportant messages so that the channel isn't marked as unread