Ensure thread archive state is also synced when syncing channels

metricity/exts/event_listeners/_syncer_utils.py

@@ -117,7 +117,8 @@ async def sync_channels(bot: Bot, guild: discord.Guild) -> None:
                 if thread.parent.category.id in BotConfig.ignore_categories:
                     continue
             else:
-                # This is a forum channel, not currently supported by Discord.py. Ignore it.
+                # This use to happen for forum channels, when not supported by Discord.py.
+                # This case should no longer be possible, but will be kept for future possibilities.
                 continue
 
             if db_thread := await sess.get(models.Thread, str(thread.id)):
@@ -130,6 +131,8 @@ async def sync_channels(bot: Bot, guild: discord.Guild) -> None:
                 insert_thread(thread, sess)
         await sess.commit()
 
+    log.info("Thread synchronisation process complete, synchronising deleted threads")
+    await sync_thread_archive_state(guild)
     log.info("Thread synchronisation process complete, finished synchronising guild.")
     bot.channel_sync_in_progress.set()