fix this

"if a user pins a comment on their wall, then that comment gets janny-removed or the account shadowbanned, the wall owner is unable to pin another comment"

files/routes/admin.py

@@ -1612,6 +1612,11 @@ def remove_comment(c_id, v):
 
 	comment.is_banned = True
 
+	if comment.pinned:
+		comment.pinned = None
+		comment.pinned_utc = None
+		comment.unpin_parents()
+
 	for media_usage in comment.media_usages:
 		media_usage.removed_utc = time.time()
 		g.db.add(media_usage)

files/routes/comments.py

@@ -550,9 +550,10 @@ def pin_comment_wall_owner(cid, v):
 		if v.id != comment.wall_user_id:
 			stop(403, "You can't pin comments on the walls of other users!")
 
-		existing = g.db.query(Comment.id).filter(
+		existing = g.db.query(Comment.id).join(Comment.author).filter(
 			Comment.wall_user_id == v.id,
 			Comment.pinned.like('% (Wall Owner)'),
+			User.shadowbanned == None,
 		).one_or_none()
 
 		if existing: