2021-01-02 Same commodity, different values
    Assets            -1 Stock {100 USD} [2021-01-01]
    Assets             1 Stock {100 EUR} [2021-01-01]
    Equity

test bal --lots
1 Stock {EUR100} [2021/01/01]
-1 Stock {USD100} [2021/01/01]  Assets
-1 Stock {EUR100} [2021/01/01]
1 Stock {USD100} [2021/01/01]  Equity
--------------------
                   0
end test