[Satellite 6.3] Red Hat Satellite upgrade precheck from 6.2 to 6.3 fails with error `Parameter katello-proxy-port invalid: null is not a valid integer`
Issue
- Red Hat Satellite upgrade precheck from 6.2 to 6.3 fails with below error:
Parameter katello-proxy-port invalid: "null" is not a valid integer
Environment
- Red Hat Satellite 6.2 to 6.3.0 GA Upgrade
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