Improve labeled chest caching interactions

mosfet/protocol/managers.py

@@ -365,6 +365,7 @@ class ChestOpenManager:
         self.g.chest_viewers = self.g.get('chest_viewers') or {}
         self.g.chest_open_events = self.g.get('chest_open_events') or []
         self.g.last_chest_opened_by_other = None
+        self._own_open_suppressions = {}
         self.g.connection.register_packet_listener(
             self.handle_block_event, BlockEventPacket)
 
@@ -396,17 +397,31 @@ class ChestOpenManager:
         else:
             self.g.chest_viewers.pop(position, None)
 
+        now = time.monotonic()
+        self._own_open_suppressions = {
+            pos: expires for pos, expires in self._own_open_suppressions.items()
+            if expires > now
+        }
         pending = self.g.get('pending_chest_open')
-        pending_age = (time.monotonic() - pending.get('requested_at', 0)
+        pending_age = (now - pending.get('requested_at', 0)
                        if pending is not None else None)
         pending_is_fresh = (pending_age is not None and
                             0 <= pending_age <= self.OWN_OPEN_TIMEOUT)
-        is_bot_opening = (
-            pending_is_fresh and
-            tuple(pending.get('position', ())) == position
+        pending_positions = (
+            pending.get('positions') or (pending.get('position', ()),)
+            if pending is not None else ()
         )
-        if pending is not None and (is_bot_opening or not pending_is_fresh):
+        pending_positions = {tuple(pos) for pos in pending_positions}
+        is_bot_opening = (
+            pending_is_fresh and position in pending_positions
+        )
+        if pending is not None and not pending_is_fresh:
             self.g.pending_chest_open = None
+        if is_bot_opening:
+            for own_position in pending_positions:
+                self._own_open_suppressions[own_position] = now + 0.5
+        is_bot_opening = (is_bot_opening or
+                          position in self._own_open_suppressions)
 
         if (viewers <= previous_viewers or
                 (is_bot_opening and