[3394830] Fixed a memory leak in InstancedGeometry
[3394830] Fixed a memory leak in InstancedGeometry

--HG--
branch : v1-7

ruleless/ogre,bhlzlx/ogre,ruleless/ogre,bhlzlx/ogre,ehsan/ogre,ruleless/ogre,ruleless/ogre,ehsan/ogre,bhlzlx/ogre,ehsan/ogre,bhlzlx/ogre,ruleless/ogre,bhlzlx/ogre,ehsan/ogre,ehsan/ogre,bhlzlx/ogre,ruleless/ogre