$ git clone -n https://src.fedoraproject.org/rpms/python-system-calls.git /var/lib/mock/f39-build-1426381-31593/root/chroot_tmpdir/scmroot/python-system-calls
Cloning into '/var/lib/mock/f39-build-1426381-31593/root/chroot_tmpdir/scmroot/python-system-calls'...
$ git fetch origin 41228a7fec0ab26ca2e43c76214f6ce629241a9d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-system-calls
 * [new ref]         41228a7fec0ab26ca2e43c76214f6ce629241a9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 41228a7 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild