Fixed not combining soups

overcooked_simulator/game_items.py

@@ -325,7 +325,12 @@ class Plate(CookingEquipment):
 
     def can_combine(self, other):
         if not super().can_combine(other):
-            if isinstance(other, CookingEquipment) and len(other.content_list) == 1:
+            if (
+                isinstance(other, CookingEquipment)
+                and len(other.content_list) == 1
+                and not self.content_list
+                and self.clean
+            ):
                 return other.content_list[0].name in self.transitions
             return False
         else: