$ git clone -n https://src.fedoraproject.org/rpms/clibs-list.git /var/lib/mock/f45-build-4210-331/root/chroot_tmpdir/scmroot/clibs-list
Cloning into '/var/lib/mock/f45-build-4210-331/root/chroot_tmpdir/scmroot/clibs-list'...
$ git fetch origin 79fade96aa6faeae0c8da01a3b1982057581fbaa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/clibs-list
 * [new ref]         79fade96aa6faeae0c8da01a3b1982057581fbaa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 79fade9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild