$ git clone -n https://src.fedoraproject.org/rpms/python-giacpy.git /var/lib/mock/f42-build-3442843-45457/root/chroot_tmpdir/scmroot/python-giacpy
Cloning into '/var/lib/mock/f42-build-3442843-45457/root/chroot_tmpdir/scmroot/python-giacpy'...
$ git fetch origin 7fae3cb38d3a465dfe326b89b5bcca6989023813:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-giacpy
 * [new ref]         7fae3cb38d3a465dfe326b89b5bcca6989023813 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fae3cb Merge patch for doctest