Policy Server manual cert generation loses the app id serialNumber value

[crokita]

Bug Report

All app certificates when enabling cert generation are automatically generated correctly, but when attempting to force update one through the app details Generate Certificate button, everything updates except for carrying the serialNumber over to the new certificate, causing it to be invalid for mobile security library tests. The UI must pass along the app ID to the options in the certificate POST route

Reproduction Steps

1. Enable certification generation
2. Go to any app's details page
3. Generate a new certificate through the button

Expected Behavior

Reading the certificate data should display the serialNumber as the app id

Observed Behavior

The serial number is a random value