Recent introductions of a validation within the hypershift operator's webhook conflicts with the UI's ability to create HCP clusters. Previously the pull secret was not required to be posted before an HC or NP, but with a recent change, the pull secret is required because the pull secret is used to validate the release image payload.

This issue is isolated to 4.15

    4.15

    100% attempt to post a HC before the pull secret is posted and the HC will be rejected. 

The expected outcome is that it should be able to post the pull secret for a HC after the HC is posted, and the controller should be eventually consistent to this change.