Add flag to disable container spec validation when restoring checkpoints #11323
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This PR adds a new flag entitled
skip-restore-spec-validation-unsafe
, defaulting to false. If the flag is set, the container spec given when restoring a checkpoint will no longer be validated against the original container spec given when the checkpoint was taken. In practice, many spec differences are benign, and it can be useful to allow the container specs to vary somewhat between checkpoint and restore. See #11307 .