This is Python 3.10.0b4+ related, the enum repr changes were reverted upstream.

________________ TestUseEnum.test_assign_scoped_enum_value_name ________________
self = <traitlets.tests.test_traitlets_enum.TestUseEnum testMethod=test_assign_scoped_enum_value_name>
    def test_assign_scoped_enum_value_name(self):
        # -- CONVERT: string => Enum value (item)
        scoped_names = ["Color.red", "Color.green", "Color.blue", "Color.yellow"]
        for value in scoped_names:
            example = self.Example()
            example.color = value
            self.assertIsInstance(example.color, Color)
            if sys.version_info < (3, 10):
                self.assertEqual(str(example.color), value)
            else:
>               self.assertEqual(repr(example.color), value)
E               AssertionError: '<Color.red: 1>' != 'Color.red'
E               - <Color.red: 1>
E               ? -         ----
E               + Color.red
traitlets/tests/test_traitlets_enum.py:94: AssertionError

We just need to drop this patch one again: https://src.fedoraproject.org/rpms/python-traitlets/c/a6a391e999bfac652c0541fbb4e8f79d70bd03c6?branch=rawhide

PR: https://src.fedoraproject.org/rpms/python-traitlets/pull-request/4#