[FLINK-38279] Add SnapshotPendingSplitsState to MySQL checkpoint stat… #4127
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…e restoration
[FLINK-38279]
This issue currently prevents restoring snapshot jobs from being restart-able from save points/checkpoints which means that large table and database replication must be done in one shot. Any thing that crashes the snapshotting process creates an entirely non-recoverable situation which is highly inconvenient and un-workable in many set ups.