displace_atom rotate needs to operate on unwrapped coordinates with image flags set to zero

    int *body = atom->body;

    int *mask = atom->mask;

    int nlocal = atom->nlocal;

    imageint *image = atom->image;

    for (i = 0; i < nlocal; i++) {

      if (mask[i] & groupbit) {

        // unwrap coordinate and reset image flags accordingly

        domain->unmap(x[i],image[i]);

        image[i] = ((imageint) IMGMAX << IMG2BITS) |

          ((imageint) IMGMAX << IMGBITS) | IMGMAX;

        d[0] = x[i][0] - point[0];

        d[1] = x[i][1] - point[1];

        d[2] = x[i][2] - point[2];