Fix getting collapsed state from tab group knobs.
Fix getting collapsed state from tab group knobs.


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