Merge "Fix undefined behavior (not returning a value from a function with return)." into lmp-dev

        r[ 1] =  xy*nc + zs;    r[ 5] = y*y*nc +  c;    r[ 9] =  yz*nc - xs;

        r[ 2] =  zx*nc - ys;    r[ 6] =  yz*nc + xs;    r[10] = z*z*nc +  c;

    }

    return rotation;

}

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