Also,
If I remember correctly, xtrabackup will modify xtrabackup_checkpoints file in full backup, so it will not allow to apply the same incremental second time, so it will look like Stewart said - "no-op" operation.
Also,
If I remember correctly, checkpoints file in full backup,
xtrabackup will modify xtrabackup_
so it will not allow to apply the same incremental second time, so it will look like Stewart said - "no-op" operation.