$ git clone -n https://src.fedoraproject.org/rpms/python-jaraco-classes.git /var/lib/mock/f39-build-1487187-34488/root/chroot_tmpdir/scmroot/python-jaraco-classes
Cloning into '/var/lib/mock/f39-build-1487187-34488/root/chroot_tmpdir/scmroot/python-jaraco-classes'...
$ git fetch origin 7739d2e4a245311fb9454cecee559d99ac6667a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jaraco-classes
 * [new ref]         7739d2e4a245311fb9454cecee559d99ac6667a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7739d2e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild