$ git clone -n https://src.fedoraproject.org/rpms/perl-Text-Lorem.git /var/lib/mock/f45-build-27036-620/root/chroot_tmpdir/scmroot/perl-Text-Lorem
Cloning into '/var/lib/mock/f45-build-27036-620/root/chroot_tmpdir/scmroot/perl-Text-Lorem'...
$ git fetch origin afc99626c5ac7ec8b1b83ce1da9f0c689ef8ce41:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Text-Lorem
 * [new ref]         afc99626c5ac7ec8b1b83ce1da9f0c689ef8ce41 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at afc9962 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild