$ git clone -n https://src.fedoraproject.org/rpms/mpg123.git /var/lib/mock/f40-build-787481-134780/root/chroot_tmpdir/scmroot/mpg123
Cloning into '/var/lib/mock/f40-build-787481-134780/root/chroot_tmpdir/scmroot/mpg123'...
$ git fetch origin 2e00848c2c1f30879f32a44572670b5f72d8aaa8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mpg123
 * [new ref]         2e00848c2c1f30879f32a44572670b5f72d8aaa8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2e00848 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild