$ git clone -n https://src.fedoraproject.org/rpms/hulk.git /var/lib/mock/f42-build-3314778-41426/root/chroot_tmpdir/scmroot/hulk
Cloning into '/var/lib/mock/f42-build-3314778-41426/root/chroot_tmpdir/scmroot/hulk'...
$ git fetch origin 8eb4e7fdcfad8d14e25dcaf88898cdd5d43ed9e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hulk
 * [new ref]         8eb4e7fdcfad8d14e25dcaf88898cdd5d43ed9e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8eb4e7f Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild