$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-Domain-TLD.git /var/lib/mock/f45-build-25251-610/root/chroot_tmpdir/scmroot/perl-Net-Domain-TLD
Cloning into '/var/lib/mock/f45-build-25251-610/root/chroot_tmpdir/scmroot/perl-Net-Domain-TLD'...
$ git fetch origin 63ba5eb387432d0db40d5c9c719dde78556def9d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-Domain-TLD
 * [new ref]         63ba5eb387432d0db40d5c9c719dde78556def9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63ba5eb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild