Avoiding seg fault when attribute data is null
Avoiding seg fault when attribute data is null

goddardl/cortex,hradec/cortex,davidsminor/cortex,lento/cortex,goddardl/cortex,appleseedhq/cortex,davidsminor/cortex,appleseedhq/cortex,davidsminor/cortex,lento/cortex,hradec/cortex,goddardl/cortex,hradec/cortex,lento/cortex,davidsminor/cortex,appleseedhq/cortex