Fix dragging of multiple nodes without jumping position.
Fix dragging of multiple nodes without jumping position.

oxeron/CocosBuilder,oxeron/SpriteBuilder,oxeron/SpriteBuilder,oxeron/CocosBuilder,oxeron/SpriteBuilder,oxeron/CocosBuilder,oxeron/SpriteBuilder,oxeron/SpriteBuilder,oxeron/CocosBuilder,oxeron/CocosBuilder,oxeron/CocosBuilder,oxeron/SpriteBuilder