Cannot delete actor if it has links to an item that has been deleted

Call:

curl --location --request GET 'https://sshoc-marketplace-api.acdh-dev.oeaw.ac.at/api/actors/18004' \
--header 'Authorization: XXX'

returns:

{
    "id": 18004,
    "name": "Frank Fischer 0005",
    ...
    "items": [
        {
            "id": 63505,
            "category": "publication",
            "label": "Faust Times Eighteen - A Network Analysis of Theatre Plays Around the Myth of Faust",
            "persistentId": "GzPPp6",
            "lastInfoUpdate": "2022-01-12T11:47:57+0000"
        },
        {
            "id": 63504,
            "category": "publication",
            "label": "Faust Times Eighteen - A Network Analysis of Theatre Plays Around the Myth of Faust",
            "persistentId": "GzPPp6",
            "lastInfoUpdate":no_bicycles: "2022-01-12T11:47:52+0000"
        }
    ]
}

Item with persistantId GzPPp6 doesn't exist anymore (I deleted it), so:

curl --location --request GET 'https://sshoc-marketplace-api.acdh-dev.oeaw.ac.at/api/publications/GzPPp6' \
--header 'Authorization: XXX'

returns 404 (as expected)

I want to delete the actor:

curl --location --request DELETE 'https://sshoc-marketplace-api.acdh-dev.oeaw.ac.at/api/actors/18004' \
--header 'Authorization: XXX'

and I get:

{
    "timestamp": "2022-01-13 13:45:30",
    "status": 500,
    "error": "could not execute statement; SQL [n/a]; constraint [item_contributor_actor_id_fk]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement"
}

From the logs:

Caused by: org.postgresql.util.PSQLException: ERROR: update or delete on table "actors" violates foreign key constraint "item_contributor_actor_id_fk" on table "items_contributors"
  Detail: Key (id)=(18004) is still referenced from table "items_contributors".