Fix various bugs with threads glitching

Author: fourjr

bot.py

@@ -1164,7 +1164,7 @@ async def handle_reaction_events(self, payload):
                 logger.warning("Failed to find linked message for reactions: %s", e)
                 return
 
-        if self.config["transfer_reactions"]:
+        if self.config["transfer_reactions"] and linked_message is not None:
             if payload.event_type == "REACTION_ADD":
                 if await self.add_reaction(linked_message, reaction):
                     await self.add_reaction(message, reaction)

core/thread.py

@@ -663,22 +663,23 @@ async def find_linked_message_from_dm(self, message, either_direction=False):
         else:
             compare_url = None
 
-        async for linked_message in self.channel.history():
-            if not linked_message.embeds:
-                continue
-            url = linked_message.embeds[0].author.url
-            if not url:
-                continue
-            if url == compare_url:
-                return linked_message
+        if self.channel is not None:
+            async for linked_message in self.channel.history():
+                if not linked_message.embeds:
+                    continue
+                url = linked_message.embeds[0].author.url
+                if not url:
+                    continue
+                if url == compare_url:
+                    return linked_message
 
-            msg_id = url.split("#")[-1]
-            if not msg_id.isdigit():
-                continue
-            msg_id = int(msg_id)
-            if int(msg_id) == message.id:
-                return linked_message
-        raise ValueError("Thread channel message not found.")
+                msg_id = url.split("#")[-1]
+                if not msg_id.isdigit():
+                    continue
+                msg_id = int(msg_id)
+                if int(msg_id) == message.id:
+                    return linked_message
+            raise ValueError("Thread channel message not found.")
 
     async def edit_dm_message(self, message: discord.Message, content: str) -> None:
         try: