UT failing: test_router_update_gateway_upon_subnet_create_max_ips_ipv6

[Sahid Orentino]

networking_ovn.tests.unit.l3.test_l3_ovn.OVNL3ExtrarouteTests.test_router_update_gateway_upon_subnet_create_max_ips_ipv6
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Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):
      File "/home/sahid/merge/networking-ovn/.tox/py37/lib/python3.7/site-packages/neutron/tests/base.py", line 180, in func
        return f(self, *args, **kwargs)
      File "/home/sahid/merge/networking-ovn/networking_ovn/tests/unit/l3/test_l3_ovn.py", line 1418, in test_router_update_gateway_upon_subnet_create_max_ips_ipv6
        add_static_route_calls, any_order=True)
      File "/home/sahid/merge/networking-ovn/.tox/py37/lib/python3.7/site-packages/mock/mock.py", line 994, in assert_has_calls
        ), cause)
      File "<string>", line 3, in raise_from
    AssertionError: 'mock' does not contain all of (call(<ANY>, ip_prefix='::/0', nexthop='2001:db8::'),) in its call list, found [call('neutron-51bcb5a1-3e6d-44b0-b8cc-0952ccb21fcc', ip_prefix='::/0', nexthop='2001:db8::1')] instead

[Sahid Orentino (sahid-ferdjaoui)]

The unit test is failing with py37 and py38.