op-supervisor: Rewind database if an error occurs while storing logs for a block

[ajsutton]

Description

Rewind database if an error occurs while storing logs for a block.

Ensures the database is rewound to the point where it can retry storing the logs for the block rather than having some logs already exist.

Note that the rewind is a no-op if no logs were written for the block anyway so is safe to call on any error when processing the block.

Tests

Updated unit tests.

Metadata

• Fixes #11044