There are cases where a plan should be editable even after it was started once:

1. The Plan has failed and the failure is caused by the network/storage mapping. Users should be able to fix the mapping.

2. The plan was cancelled since users wanted to change a parameter of the plan.

The common criteria is that no individual VM migration succeeded. In that situation, it would be safe to allow editing the plan.

This is a follow-up of https://bugzilla.redhat.com/show_bug.cgi?id=1951660.

Original bug: https://bugzilla.redhat.com/2012795

URL: https://github.com/kubev2v/forklift-console-plugin/issues/757