$ git clone -n https://src.fedoraproject.org/rpms/erlang-getopt.git /var/lib/mock/f45-build-8323-384/root/chroot_tmpdir/scmroot/erlang-getopt
Cloning into '/var/lib/mock/f45-build-8323-384/root/chroot_tmpdir/scmroot/erlang-getopt'...
$ git fetch origin 410e61c1b67f19f2073a692d8ea1461cb19a88a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-getopt
 * [new ref]         410e61c1b67f19f2073a692d8ea1461cb19a88a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 410e61c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild