In continuation to https://issues.redhat.com/browse/OCPBUGS-31808, when the controlplanemachineset is deleted on a 4.15 cluster on VSphere(to recreate it without failure domains), it thorws an error like below:

~~~
    message: 'The control plane machine set has experienced the following error more
      than 15 consecutive times since 2024-04-29 19:09:39.53196189 +0000 UTC m=+0.548307418:
      failed to update control plane machine set: admission webhook "controlplanemachineset.machine.openshift.io"
      denied the request: spec.template.machines_v1beta1_machine_openshift_io.spec.providerSpec.value.template:
      Invalid value: "uslpreprod1-br7h4-rhcos": template must be provided as the full
      path'
~~~

It is expecting the ull path for th template. However, when installing the cluster, the machinesets only have the name of the template and the controlplanemachineset creation also succeeded initially with only the template name.

This issue happens when trying to modify the controlplanemachineset as well.

This validation seems incorrect by the validating webhook controlplanemachineset.machine.openshift.io.

    4.15

    Reproducible on VSphere

    1. Try deleting or modifying the controlplanemachineset when it has only the template name and not the full template path.
    2. It fails with the said error.
    

    The controlplanemachineset fails deletion

     The controlplanemachineset should delete without expecting full path of the template