Hmm, the entity_header tables are updated properly as far as I can see (I approved 3 authors in an otherwise empty DB):
```sql
bookbrainz_min=# select * from author_header;
                 bbid                 | master_revision_id 
--------------------------------------+--------------------
 e75003e3-4f05-4998-aad3-349a91a9dcd6 |              24850
 c195f468-7bc1-4ac4-9fc3-9f47bf8b84ae |              24852
 67ebc5e7-0f72-425c-911d-26125492b71c |              24853
(3 rows)
``