Description of problem:

In the DSP UI, if I edit a workbench to assign it one GPU, and save, when I edit it again, it's back to zero. 

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. Select a stopped WB.
2. Edit it to add 1GPU
3. Save it
4. Edit it again

Actual results:

it says zero GPU

Expected results:

I'd expect it to remember this choice in my projects/workbenches. 

Reproducibility (Always/Intermittent/Only Once):

Build Details:

RHODS 1.19

Workaround:

Additional info: