matrix class does not work with field elements

[hgedia]

UPDATE: Unrelated to field , also fails with double type.

typedef bls12_fq<381>::value_type bls12_base_f;

int main() {
    constexpr auto f1 = bls12_base_f(0x1);
    constexpr auto f2 = bls12_base_f(0x2);

    constexpr matrix<bls12_base_f,2,2> m1 = {{{f1, f2}, {f1, f2}}};
    constexpr matrix<bls12_base_f,2,2> m2 = {{{f2, f1}, {f2, f1}}};

    auto m3 = m1 + m2;
    return 0;
}

The above snippet fails with the below error

/home/hgedia/Development/nil/crypto3-scaffold/src/bls/src/main.cpp:18:18: error: invalid operands to binary expression ('const matrix<bls12_base_f, 2, 2>' (aka 'const matrix<element_fp<params<bls12_base_field<381>>>, 2, 2>') and 'const matrix<bls12_base_f, 2, 2>' (aka 'const matrix<element_fp<params<bls12_base_field<381>>>, 2, 2>'))
    auto m3 = m1 + m2;