Fixed crashes with not initialized CustomData

src/common/Utilities/DataMap.h

@@ -28,6 +28,9 @@ public:
      */
     template<class T> T* Get(std::string const & k) const {
         static_assert(std::is_base_of<Base, T>::value, "T must derive from Base");
+        if (Container.empty())
+            return nullptr;
+
         auto it = Container.find(k);
         if (it != Container.end())
             return dynamic_cast<T*>(it->second.get());

src/server/game/Entities/Object/Object.cpp

@@ -71,6 +71,8 @@ Object::Object() : m_PackGUID(sizeof(uint64)+1)
     m_inWorld           = false;
     m_objectUpdated     = false;
 
+    CustomData.Set("base",new DataMap::Base); // avoid crash when access not initialized CustomData
+
     m_PackGUID.appendPackGUID(0);
 }