[Beta 5 Bug] RenderBinManager will not return materials for items in the traslucent bin

/// Utility function, gets the material from the RenderInst if available, otherwise, return NULL   
inline BaseMatInstance* RenderBinManager::getMaterial(RenderInst* inst) const  
{   
   if (inst->type == RenderPassManager::RIT_Mesh || inst->type == RenderPassManager::RIT_Interior || inst->type == RenderPassManager::RIT_Translucent)   
      return static_cast<MeshRenderInst*>(inst)->matInst;            
  
   return NULL;         
}