$ git clone -n https://src.fedoraproject.org/rpms/perl-MogileFS-Utils.git /var/lib/mock/f45-build-24924-607/root/chroot_tmpdir/scmroot/perl-MogileFS-Utils
Cloning into '/var/lib/mock/f45-build-24924-607/root/chroot_tmpdir/scmroot/perl-MogileFS-Utils'...
$ git fetch origin d1faee6026a6b880ce092651c77dd3c6573353e2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MogileFS-Utils
 * [new ref]         d1faee6026a6b880ce092651c77dd3c6573353e2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1faee6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild