Fix Message.channel rebinding sometimes being Object

discord/message.py

@@ -1763,9 +1763,13 @@ class Message(PartialMessage, Hashable):
     def _handle_interaction(self, data: MessageInteractionPayload):
         self.interaction = MessageInteraction(state=self._state, guild=self.guild, data=data)
 
-    def _rebind_cached_references(self, new_guild: Guild, new_channel: Union[TextChannel, Thread]) -> None:
+    def _rebind_cached_references(
+        self,
+        new_guild: Guild,
+        new_channel: Union[GuildChannel, Thread, PartialMessageable],
+    ) -> None:
         self.guild = new_guild
-        self.channel = new_channel
+        self.channel = new_channel  # type: ignore # Not all "GuildChannel" are messageable at the moment
 
     @utils.cached_slot_property('_cs_raw_mentions')
     def raw_mentions(self) -> List[int]:

discord/state.py

@@ -65,7 +65,6 @@ from .role import Role
 from .enums import ChannelType, try_enum, Status
 from . import utils
 from .flags import ApplicationFlags, Intents, MemberCacheFlags
-from .object import Object
 from .invite import Invite
 from .integrations import _integration_factory
 from .interactions import Interaction
@@ -1631,9 +1630,10 @@ class AutoShardedConnectionState(ConnectionState[ClientT]):
             new_guild = self._get_guild(msg.guild.id)
             if new_guild is not None and new_guild is not msg.guild:
                 channel_id = msg.channel.id
-                channel = new_guild._resolve_channel(channel_id) or Object(id=channel_id)
-                # channel will either be a TextChannel, Thread or Object
-                msg._rebind_cached_references(new_guild, channel)  # type: ignore
+                channel = new_guild._resolve_channel(channel_id) or PartialMessageable(
+                    state=self, id=channel_id, guild_id=new_guild.id
+                )
+                msg._rebind_cached_references(new_guild, channel)
 
     async def chunker(
         self,