../venv/lib/python3.11/site-packages/sqlalchemy/engine/base.py:1971: in _exec_single_context
    self.dialect.do_execute(
../venv/lib/python3.11/site-packages/sqlalchemy/engine/default.py:919: in do_execute
    cursor.execute(statement, parameters)
E   psycopg2.errors.UniqueViolation: duplicate key value violates unique constraint "unix_tombstone_login_hash_key"
E   DETAIL:  Key (login_hash)=(\xf7f9c18e8ae2c3e419d3a41b65d120471dbb82cdbdb774891b1b6421f60e8a547770609d797a615ecf706db612cd1a0eebdb42f8bae861b1272389a72f543d9d) already exists.
E   CONTEXT:  SQL statement "update unix_tombstone ts set login_hash = v_u_login_hash where ts.uid = v_ua_ts.uid"
E   PL/pgSQL function user_ensure_tombstone() line 28 at SQL statement

The above exception was the direct cause of the following exception:
tests/model/test_unix_tombstone.py:200: in test_create_unix_account
    with session.begin_nested():
../venv/lib/python3.11/site-packages/sqlalchemy/engine/util.py:147: in __exit__
    with util.safe_reraise():
../venv/lib/python3.11/site-packages/sqlalchemy/util/langhelpers.py:146: in __exit__
    raise exc_value.with_traceback(exc_tb)
../venv/lib/python3.11/site-packages/sqlalchemy/engine/util.py:145: in __exit__
    self.commit()
<string>:2: in commit
    ???
../venv/lib/python3.11/site-packages/sqlalchemy/orm/state_changes.py:139: in _go
    ret_value = fn(self, *arg, **kw)
../venv/lib/python3.11/site-packages/sqlalchemy/orm/session.py:1257: in commit
    self._prepare_impl()
<string>:2: in _prepare_impl
    ???
../venv/lib/python3.11/site-packages/sqlalchemy/orm/state_changes.py:139: in _go
    ret_value = fn(self, *arg, **kw)
../venv/lib/python3.11/site-packages/sqlalchemy/orm/session.py:1232: in _prepare_impl
    self.session.flush()
../venv/lib/python3.11/site-packages/sqlalchemy/orm/session.py:4296: in flush
    self._flush(objects)
../venv/lib/python3.11/site-packages/sqlalchemy/orm/session.py:4431: in _flush
    with util.safe_reraise():
../venv/lib/python3.11/site-packages/sqlalchemy/util/langhelpers.py:146: in __exit__
    raise exc_value.with_traceback(exc_tb)
../venv/lib/python3.11/site-packages/sqlalchemy/orm/session.py:4392: in _flush
    flush_context.execute()
../venv/lib/python3.11/site-packages/sqlalchemy/orm/unitofwork.py:466: in execute
    rec.execute(self)
../venv/lib/python3.11/site-packages/sqlalchemy/orm/unitofwork.py:642: in execute
    util.preloaded.orm_persistence.save_obj(
../venv/lib/python3.11/site-packages/sqlalchemy/orm/persistence.py:85: in save_obj
    _emit_update_statements(
../venv/lib/python3.11/site-packages/sqlalchemy/orm/persistence.py:912: in _emit_update_statements
    c = connection.execute(
../venv/lib/python3.11/site-packages/sqlalchemy/engine/base.py:1422: in execute
    return meth(
../venv/lib/python3.11/site-packages/sqlalchemy/sql/elements.py:514: in _execute_on_connection
    return connection._execute_clauseelement(
../venv/lib/python3.11/site-packages/sqlalchemy/engine/base.py:1644: in _execute_clauseelement
    ret = self._execute_context(
../venv/lib/python3.11/site-packages/sqlalchemy/engine/base.py:1850: in _execute_context
    return self._exec_single_context(
../venv/lib/python3.11/site-packages/sqlalchemy/engine/base.py:1990: in _exec_single_context
    self._handle_dbapi_exception(
../venv/lib/python3.11/site-packages/sqlalchemy/engine/base.py:2357: in _handle_dbapi_exception
    raise sqlalchemy_exception.with_traceback(exc_info[2]) from e
../venv/lib/python3.11/site-packages/sqlalchemy/engine/base.py:1971: in _exec_single_context
    self.dialect.do_execute(
../venv/lib/python3.11/site-packages/sqlalchemy/engine/default.py:919: in do_execute
    cursor.execute(statement, parameters)
E   sqlalchemy.exc.IntegrityError: (psycopg2.errors.UniqueViolation) duplicate key value violates unique constraint "unix_tombstone_login_hash_key"
E   DETAIL:  Key (login_hash)=(\xf7f9c18e8ae2c3e419d3a41b65d120471dbb82cdbdb774891b1b6421f60e8a547770609d797a615ecf706db612cd1a0eebdb42f8bae861b1272389a72f543d9d) already exists.
E   CONTEXT:  SQL statement "update unix_tombstone ts set login_hash = v_u_login_hash where ts.uid = v_ua_ts.uid"
E   PL/pgSQL function user_ensure_tombstone() line 28 at SQL statement
E   
E   [SQL: UPDATE "user" SET unix_account_id=%(unix_account_id)s WHERE "user".id = %(user_id)s]
E   [parameters: {'unix_account_id': 20, 'user_id': 215}]
E   (Background on this error at: https://sqlalche.me/e/20/gkpj)

file /opt/pycroft/app/tests/model/test_unix_tombstone.py, line 213
      def test_create_user(self, session, ua):
E       fixture 'ua' not found
>       available fixtures: _session_faker, cache, capfd, capfdbinary, caplog, capsys, capsysbinary, class_session, clean_engine, connection, cov, doctest_namespace, engine, faker, module_session, module_transaction, monkeypatch, no_cover, pytestconfig, record_property, record_testsuite_property, record_xml_attribute, recwarn, session, tmp_path, tmp_path_factory, tmpdir, tmpdir_factory, unix_account, utcnow
>       use 'pytest --fixtures [testpath]' for help on them.

/opt/pycroft/app/tests/model/test_unix_tombstone.py:213