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This PR fixes a deadlock with child-parent pipelines. E.g.
JobRunningPipelineskipped jobs ifRunModel.lock_ownerwas set to prioritizeRunPipelinebut if the jobs was stale this cause deadlock becauseRunPipelinecannot recover stale job locks. The fix is to skip locking only new jobs and still process stale jobs irrespective of parent'slock_owner.Also prioritizes
JobSubmittedPipelineoverRunPipelineto speedup provisioning (especially large multi-node tasks).