Foreman 2.3.1 persistent volume size field inserting "GB" repeatedly

I just upgraded Foreman to 2.3.1. It is wired up to create VMs in vSphere. The compute profile I have created have defined persistent volume disk with different sizes. However, occasionally I need to add additional disks or change the size defined via the profile. However, this field is repeatedly inserting a “GB” unit after every keystroke.