$ git clone -n https://src.fedoraproject.org/rpms/sameboy.git /var/lib/mock/f42-build-side-1-3539481-46565/root/chroot_tmpdir/scmroot/sameboy
Cloning into '/var/lib/mock/f42-build-side-1-3539481-46565/root/chroot_tmpdir/scmroot/sameboy'...
$ git fetch origin 1e6c0f6e6565df890f7a7e00ecd59359722a47a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sameboy
 * [new ref]         1e6c0f6e6565df890f7a7e00ecd59359722a47a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1e6c0f6 Update to 1.0.1