Correctly handle deleted posts

uitsmmbot/post.py

@@ -79,10 +79,16 @@ class PostComponent(botogram.Component):
         )]
         for post_id in to_telegram:
             data = self.buffer.request("get", "updates/%s.json" % post_id)
-            if data["status"] != "sent":
-                continue
 
-            bot.chat(channel).send(data["text_formatted"])
+            # For example if the update was deleted
+            if "error" not in data:
+                if data["status"] != "sent":
+                    continue
+
+                bot.chat(channel).send(data["text_formatted"])
+
+            # This will delete the update if the message was sent to the
+            # channel or there was an error with it
             self.db.update(
                 "DELETE FROM to_telegram WHERE post_id = ?;", post_id
             )