Talos 1.14 rejects a `patch mc` that sets `cluster.allowSchedulingOnControlPlanes`
— the field left the v1alpha1 schema, the way `machine.install` did — and the
rejection discards the rest of the patch with it, so the registry mirror never
lands and the failure moves from Pending pods to ImagePullBackOff without ever
saying so. Document the two as separate steps, and correct the claim that the
taint has to be patched away: `kubectl taint` is what §1 prescribes and it holds
until the node re-registers.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>