jc: tests failing in s390x

The package jc in Debian was updated to v1.23.6 and with that the tests are failing in s390x architecture with the error:

=================================== FAILURES ===================================
 35s __________________________ MyTests.test_proc_net_tcp6 __________________________
 35s 
 35s self = <tests.test_proc_net_tcp.MyTests testMethod=test_proc_net_tcp6>
 35s 
 35s     def test_proc_net_tcp6(self):
 35s         """
 35s         Test '/proc/net/tcp6'
 35s         """
 35s >       self.assertEqual(jc.parsers.proc_net_tcp.parse(self.f_in['proc_net_tcp6'], quiet=True),
 35s                                                        self.f_json['proc_net_tcp6'])
 35s E       AssertionError: Lists differ: [{'en[543 chars]s': '4606:126:f1:19e::4c3a:0', 'local_port': 5[2894 chars]30'}] != [{'en[543 chars]s': '2601:646:9e01:f100::3a4c', 'local_port': [2893 chars]30'}]
 35s E       
 35s E       First differing element 1:
 35s E       {'ent[23 chars]s': '4606:126:f1:19e::4c3a:0', 'local_port': 5[352 chars]000'}
 35s E       {'ent[23 chars]s': '2601:646:9e01:f100::3a4c', 'local_port': [353 chars]000'}
 35s E       
 35s E       Diff is 4818 characters long. Set self.maxDiff to None to see it.
 35s 
 35s tests/test_proc_net_tcp.py:48: AssertionError
 35s =========================== short test summary info ============================
 35s FAILED tests/test_proc_net_tcp.py::MyTests::test_proc_net_tcp6 - AssertionErr...
 35s ======================== 1 failed, 1355 passed in 6.43s ========================

The full test log can be seen at https://ci.debian.net/data/autopkgtest/unstable/s390x/j/jc/41094874/log.gz