Fix problem with setting up a controller on a TextureUnitState when one already exists (e.g. calling setAnimatedTextureName more than once)
Fix problem with setting up a controller on a TextureUnitState when one already exists (e.g. calling setAnimatedTextureName more than once)

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branch : v1-6

digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre