AutoMod: disable inbox replies on comments

AutoModerator doesn't care about any of the replies to its comments
coming into its inbox, so we might as well avoid all this unnecessary
updating.

r2/r2/lib/automoderator.py

@@ -1382,6 +1382,7 @@ def perform_actions(self, item, data):
             new_comment, inbox_rel = Comment._new(
                 ACCOUNT, link, parent_comment, comment, None)
             new_comment.distinguished = "yes"
+            new_comment.sendreplies = False
             new_comment._commit()
             queries.queue_vote(ACCOUNT, new_comment, True, None)
             queries.new_comment(new_comment, inbox_rel)