$ git clone -n https://src.fedoraproject.org/rpms/perl-Mail-AuthenticationResults.git /var/lib/mock/f45-build-24648-605/root/chroot_tmpdir/scmroot/perl-Mail-AuthenticationResults
Cloning into '/var/lib/mock/f45-build-24648-605/root/chroot_tmpdir/scmroot/perl-Mail-AuthenticationResults'...
$ git fetch origin 51bb2d4eab249c4779a8d0e632bc2cb7c55fb042:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mail-AuthenticationResults
 * [new ref]         51bb2d4eab249c4779a8d0e632bc2cb7c55fb042 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
Updating files:  50% (2/4)
Updating files:  75% (3/4)
Updating files: 100% (4/4)
Updating files: 100% (4/4), done.
HEAD is now at 51bb2d4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild