Pods fail with ImagePullBackOff after upgrade from 4.14.x to 4.14.14 or 4.15 on Azure Stack Hub

Issue

• Pods using images that are stored in the default OpenShift internal registry fails to be pull:

112s        Warning   Failed              pod/new-default-deploy-547ccb8549-9wll5    Failed to pull image "default-route-openshift-image-registry.apps.mycluster.aroapp.io/new-default-app/ubi8:latest": rpc error: code = Unknown desc = reading manifest latest in default-route-openshift-image-registry.apps.mycluster.aroapp.io/new-default-app/ubi8: manifest unknown
112s        Normal    Pulling             pod/new-default-deploy-547ccb8549-9wll5    Pulling image "default-route-openshift-image-registry.apps.mycluster.aroapp.io/new-default-app/ubi8:latest"
112s        Warning   Failed              pod/new-default-deploy-547ccb8549-9wll5    Error: ErrImagePull
98s         Warning   Failed              pod/new-default-deploy-547ccb8549-9wll5    Error: ImagePullBackOff
84s         Normal    BackOff             pod/new-default-deploy-547ccb8549-9wll5    Back-off pulling image "default-route-openshift-image-registry.apps.mycluster.aroapp.io/new-default-app/ubi8:latest"