tests/allocator_test.py AllocatorTest::test_delegation_not_subnetFAILED

[zeromind]

FAILED tests/allocator_test.py::AllocatorTest::test_delegation_not_subnet - sqlalchemy.exc.IntegrityError: (MySQLdb._exceptions.IntegrityError) (1062, "Duplicate entry '83076749736557242056487941267521536-64-384' for key 'address'")

ndcli pool <pool> get delegation currently does not catch when the user tries to get a delegation with the same size as the pool's subnet, it fails in the DB due to a unique constraint:

ndcli modify pool pool get delegation 64
ERROR - (MySQLdb._exceptions.IntegrityError) (1062, "Duplicate entry '83076749736557242056487941267521536-64-941' for key 'address'")
[SQL: INSERT INTO ipblock (created, created_by, modified, modified_by, version, address, prefix, priority, gateway, parent_id, status_id, ippool_id, vlan_id, layer3domain_id) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)]
[parameters: (datetime.datetime(2022, 2, 8, 15, 51, 40, 633610), 'admin', datetime.datetime(2022, 2, 8, 15, 51, 40, 633628), 'admin', 6, 83076749736557242056487941267521536, 64, None, None, None, 7520, None, None, 941)]
(Background on this error at: https://sqlalche.me/e/14/gkpj)

Test:
https://github.com/1and1/dim/blob/0e951965b65007c3ecbfcc15e6544ccfc635b9a7/dim-testsuite/tests/allocator_test.py#L150-L156