$ git clone -n https://src.fedoraproject.org/rpms/erlang-hyper.git /var/lib/mock/f45-build-8337-384/root/chroot_tmpdir/scmroot/erlang-hyper
Cloning into '/var/lib/mock/f45-build-8337-384/root/chroot_tmpdir/scmroot/erlang-hyper'...
$ git fetch origin 7110785092f2e494c560f6860bbd87045f5066c3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-hyper
 * [new ref]         7110785092f2e494c560f6860bbd87045f5066c3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7110785 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild