origin_metadata_add fails to write properly origin_metadata
Currently origin_metadata_add endpoints will fail with the following [1] error trying to insert dict into a bytea field.
tl;dr the tests currently send the right input of bytes but the code in prod
sends dict. Which should be mapped to bytes, but a jsonize calls transforms
it into the previous jsonb format.
Migrated from T2415 (view on Phabricator)