Skip PRRL renewal on UNASSIGNED_SEQ_NO #44019
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Today when renewing PRRLs we assert that any invalid "backwards" renewals must be because we are recovering the shard. In fact it's also possible to have `checkpointState.globalCheckpoint == SequenceNumbers.UNASSIGNED_SEQ_NO` on a tracked shard copy if the primary was just promoted and hasn't received checkpoints from all of its peers too. This commit weakens the assertion to match. Caught by a [failure of the full cluster restart tests](https://scans.gradle.com/s/5lllzgqtuegty/console-log#L8605) Relates elastic#41536
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Today when renewing PRRLs we assert that any invalid "backwards" renewals must be because we are recovering the shard. In fact it's also possible to have `checkpointState.globalCheckpoint == SequenceNumbers.UNASSIGNED_SEQ_NO` on a tracked shard copy if the primary was just promoted and hasn't received checkpoints from all of its peers too. This commit weakens the assertion to match. Caught by a [failure of the full cluster restart tests](https://scans.gradle.com/s/5lllzgqtuegty/console-log#L8605) Relates #41536
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Today when renewing PRRLs we assert that any invalid "backwards" renewals must
be because we are recovering the shard. In fact it's also possible to have
checkpointState.globalCheckpoint == SequenceNumbers.UNASSIGNED_SEQ_NOon atracked shard copy if the primary was just promoted and hasn't received
checkpoints from all of its peers too.
This commit weakens the assertion to match.
Caught by a failure of the full cluster restart tests.
Relates #41536