Describe the issue:

After 06f38ae (update of the unwrap docstring) was merged, there is a segfault occurring on the main development branch in the test numpy/_core/tests/test_multiarray.py::TestArgmax::test_combinations[data0] of the ubuntu_UBSAN CI job.

Has something in that CI environment changed since the last successful run? I tried looking through the logs and comparing to the test run from d8eb225, but nothing was obviously different.