$ git clone -n https://src.fedoraproject.org/rpms/perl-Mail-SPF.git /var/lib/mock/f45-build-24646-605/root/chroot_tmpdir/scmroot/perl-Mail-SPF
Cloning into '/var/lib/mock/f45-build-24646-605/root/chroot_tmpdir/scmroot/perl-Mail-SPF'...
$ git fetch origin 86ed7128e03157a67b8d3be119c22f9bf9e97a88:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mail-SPF
 * [new ref]         86ed7128e03157a67b8d3be119c22f9bf9e97a88 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 86ed712 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild