$ git clone -n https://src.fedoraproject.org/rpms/perl-Convert-ASCII-Armour.git /var/lib/mock/f45-build-22547-593/root/chroot_tmpdir/scmroot/perl-Convert-ASCII-Armour
Cloning into '/var/lib/mock/f45-build-22547-593/root/chroot_tmpdir/scmroot/perl-Convert-ASCII-Armour'...
$ git fetch origin 22a3aecddd64688ca03c8dc8e8a52d32da7af692:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Convert-ASCII-Armour
 * [new ref]         22a3aecddd64688ca03c8dc8e8a52d32da7af692 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22a3aec Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild