$ git clone -n https://src.fedoraproject.org/rpms/scl-utils.git /var/lib/mock/f45-build-35671-698/root/chroot_tmpdir/scmroot/scl-utils
Cloning into '/var/lib/mock/f45-build-35671-698/root/chroot_tmpdir/scmroot/scl-utils'...
$ git fetch origin 4f373481cce873585cc1f49eddcd1934b8a9a694:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scl-utils
 * [new ref]         4f373481cce873585cc1f49eddcd1934b8a9a694 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f37348 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild