$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Dmp.git /var/lib/mock/f45-build-22852-594/root/chroot_tmpdir/scmroot/perl-Data-Dmp
Cloning into '/var/lib/mock/f45-build-22852-594/root/chroot_tmpdir/scmroot/perl-Data-Dmp'...
$ git fetch origin a3d788e462bbb2406c439369fe6ae6fab8bdb8fc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-Dmp
 * [new ref]         a3d788e462bbb2406c439369fe6ae6fab8bdb8fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3d788e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild