AssetAPI: Check on asset request that the requested ref is not an empty string, happens at least in LVM scene at least.
AssetAPI: Check on asset request that the requested ref is not an empty string, happens at least in LVM scene at least.

realXtend/tundra,pharos3d/tundra,pharos3d/tundra,pharos3d/tundra,pharos3d/tundra,pharos3d/tundra,realXtend/tundra,BogusCurry/tundra,realXtend/tundra,jesterKing/naali,antont/tundra,jesterKing/naali,BogusCurry/tundra,antont/tundra,realXtend/tundra,jesterKing/naali,AlphaStaxLLC/tundra,AlphaStaxLLC/tundra,AlphaStaxLLC/tundra,BogusCurry/tundra,jesterKing/naali,antont/tundra,antont/tundra,BogusCurry/tundra,pharos3d/tundra,antont/tundra,realXtend/tundra,jesterKing/naali,BogusCurry/tundra,jesterKing/naali,realXtend/tundra,AlphaStaxLLC/tundra,antont/tundra,antont/tundra,BogusCurry/tundra,AlphaStaxLLC/tundra,jesterKing/naali,AlphaStaxLLC/tundra