Duplicate inserts into ospos_grants cause error

INSERT INTO `ospos_grants` (`permission_id`, `person_id`) VALUES
('sales_stock', 1),
('receivings_stock', 1);

sales_stock and receivings_stock are inserted into the database in 2.3_to_2.3.1.sql, so when this is run it returns an SQL error.
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Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f