The deleted additional disk from Foreman UI is getting created for VM provisioned on GCE.

Steps:
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1. Create GCE CR.
2. Create an image in Foreman using GCE images.
3. Attempt to provision a VM with the above image, but -
4. While provisioning a VM, first assign an additional disk to the VM and quickly remove it(before provisioning).
5. Complete the VM provisioning from Foreman.

Actual Behavior:
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The VM is provisioned with the additional disk, even though we have not requested it(requested first but then deleted).

Expected Behavior:
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The VM is provisioned 'without' the additional disk, as we have not requested for it.