Delete obj if it is not successfully added to grid. More to fix.

src/server/game/Entities/GameObject/GameObject.cpp

@@ -695,7 +695,7 @@ void GameObject::SaveToDB(uint32 mapid, uint8 spawnMask, uint32 phaseMask)
     WorldDatabase.CommitTransaction(trans);
 }
 
-bool GameObject::LoadFromDB(uint32 guid, Map* map)
+bool GameObject::LoadGameObjectFromDB(uint32 guid, Map* map, bool addToMap)
 {
     GameObjectData const* data = sObjectMgr->GetGOData(guid);
 
@@ -760,6 +760,9 @@ bool GameObject::LoadFromDB(uint32 guid, Map* map)
 
     m_goData = data;
 
+    if (addToMap && !GetMap()->AddToMap(this))
+        return false;
+
     return true;
 }