$ git clone -n https://src.fedoraproject.org/rpms/perl-Number-Tolerant.git /var/lib/mock/f45-build-25452-611/root/chroot_tmpdir/scmroot/perl-Number-Tolerant
Cloning into '/var/lib/mock/f45-build-25452-611/root/chroot_tmpdir/scmroot/perl-Number-Tolerant'...
$ git fetch origin c24c4a0abc0d9c1789f7100e691301eb4de6d1e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Number-Tolerant
 * [new ref]         c24c4a0abc0d9c1789f7100e691301eb4de6d1e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c24c4a0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild