Include anonymous units in replay.objects

Replay.objects is THE lookup for objects and should really store
any object accessible from any point. If you don't want to deal
with anonymous units you'll need to filter on unit.id.

Author: GraylinKim

sc2reader/events.py

@@ -162,10 +162,7 @@ def load_context(self, replay):
             else:
                 unit_class = replay.datapack.types[self.target_type]
                 self.target = unit_class(self.target_id)
-
-                # For units behind the fog of war, don't make an entry
-                if self.target.id:
-                    replay.objects[uid] = self.target
+                replay.objects[uid] = self.target
 
     def __str__(self):
         if self.target: