not checked engine from QScriptValue::call

QScriptEngine firstEngine;
QScriptEngine twoEngine;
firstEngine.evaluate(
    "function see(a){"
    "  print ('typeof a = '+ typeof a); "
    "  print ('typeof a.test = '+ typeof a.test); "
    "  print(' a = ' + a ); "
    "}"
);
{
    QScriptValue argsCall = twoEngine.newArray(1);
    argsCall.setProperty("0", 5 );
    firstEngine.globalObject().property("see").call(
        firstEngine.globalObject(),
        argsCall
    );
}
{
    QScriptValue argsCall = twoEngine.newArray(1);
    QScriptValue args1_obj = twoEngine.newObject();
    args1_obj.setProperty("test","1");
    argsCall.setProperty("0", args1_obj );
    firstEngine.globalObject().property("see").call(
        firstEngine.globalObject(),
        argsCall
    );
}