Core/ObjectHandle: Fix Reset(ObjectHandle&&) not clearing the pointer

ChangeLog.md

@@ -134,6 +134,7 @@ Nazara Engine:
 - Added Unicode Data downloader/parser
 - Integrated Unicode Data
 - Added CullingList::FillWithAllEntries method
+- Fixed ObjectHandle movement sometimes not resetting its internal pointer
 
 Nazara Development Kit:
 - Added ImageWidget (#139)

include/Nazara/Core/ObjectHandle.inl

@@ -140,6 +140,8 @@ namespace Nz
 			handle.m_object = nullptr;
 			object->UpdateHandle(&handle, this);
 		}
+		else
+			m_object = nullptr;
 	}
 
 	/*!