Default initialize entity group

Author: catastropher

src/Scene/Entity.hpp

@@ -195,7 +195,7 @@ struct Entity : DLinkedNode<Entity>
     Entity* parent = nullptr;
     Entity* nextSibling = nullptr;
     Entity* children = nullptr;
-    EntityGroup* entityGroup;
+    EntityGroup* entityGroup = nullptr;
 
     ISyncVar* syncVarHead = nullptr;
 

src/Scene/EntityManager.hpp

@@ -103,7 +103,7 @@ struct EntityManager
 
     FixedSizeVector<EntityHeader, MaxEntities> entityHeaders;
 
-	robin_hood::unordered_flat_set<Entity*> entities;
+    robin_hood::unordered_flat_set<Entity*> entities;
     robin_hood::unordered_flat_set<EntityGroup*> updatables;
     robin_hood::unordered_flat_set<EntityGroup*> serverUpdatables;
     robin_hood::unordered_flat_set<EntityGroup*> fixedUpdatables;