$ git clone -n https://src.fedoraproject.org/rpms/tecnoballz.git /var/lib/mock/f41-build-1041919-18994/root/chroot_tmpdir/scmroot/tecnoballz
Cloning into '/var/lib/mock/f41-build-1041919-18994/root/chroot_tmpdir/scmroot/tecnoballz'...
$ git fetch origin 7a5e0556f56e6ffe7928a756697ba30b1fb789c2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tecnoballz
 * [new ref]         7a5e0556f56e6ffe7928a756697ba30b1fb789c2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a5e055 Eliminate use of obsolete %patchN syntax (#2283636)