fix: remove member from guild/cache on remove

naff/api/events/processors/member_events.py

@@ -25,9 +25,13 @@ async def _on_raw_guild_member_add(self, event: "RawGatewayEvent") -> None:
     async def _on_raw_guild_member_remove(self, event: "RawGatewayEvent") -> None:
         g_id = event.data.pop("guild_id")
         user = self.cache.place_user_data(event.data["user"])
+        member = self.cache.get_member(g_id, user.id)
+
+        self.cache.delete_member(g_id, user.id)
         guild = self.cache.get_guild(g_id)
         guild.member_count -= 1
-        self.dispatch(events.MemberRemove(g_id, self.cache.get_member(g_id, user.id) or user))
+
+        self.dispatch(events.MemberRemove(g_id, member or user))
 
     @Processor.define()
     async def _on_raw_guild_member_update(self, event: "RawGatewayEvent") -> None:

naff/client/smart_cache.py

@@ -231,7 +231,9 @@ def delete_member(self, guild_id: "Snowflake_Type", user_id: "Snowflake_Type") -
         user_id = to_snowflake(user_id)
         guild_id = to_snowflake(guild_id)
 
-        self.member_cache.pop((guild_id, user_id), None)
+        if member := self.member_cache.pop((guild_id, user_id), None):
+            member.guild._member_ids.discard(user_id)
+
         self.delete_user_guild(user_id, guild_id)
 
     def place_user_guild(self, user_id: "Snowflake_Type", guild_id: "Snowflake_Type") -> None: