do not retry unmute if mute never expires

users/models/block.py

@@ -37,7 +37,7 @@ class BlockStates(StateGraph):
         """
         # Mutes don't send but might need expiry
         if instance.mute:
-            return cls.awaiting_expiry
+            return cls.awaiting_expiry if instance.expires else cls.sent
         # Remote blocks should not be here, local blocks just work
         if not instance.source.local or instance.target.local:
             return cls.sent