shiboken2 generates duplicate const for container INTYPE_#

<template name="cpplist_to_pylist_conversion">
    PyObject* %out = PyList_New((int) %in.size());
    %INTYPE::const_iterator it = %in.begin();
    for (int idx = 0; it != %in.end(); ++it, ++idx) {
        %INTYPE_0 cppItem(*it);
        PyList_SET_ITEM(%out, idx, %CONVERTTOPYTHON[%INTYPE_0](cppItem));
    }
    return %out;
</template>

// C++ to Python conversion for type 'QList<const char* >'.
static PyObject *_QList_constcharPTR__CppToPython__QList_constcharPTR_(const void *cppIn) {
    auto &cppInRef = *reinterpret_cast<::QList<const char* > *>(const_cast<void *>(cppIn));
    // TEMPLATE - cpplist_to_pylist_conversion - START
    PyObject* pyOut = PyList_New((int) cppInRef.size());
    ::QList<const char* >::const_iterator it = cppInRef.begin();
    for (int idx = 0; it != cppInRef.end(); ++it, ++idx) {
        const const char* cppItem(*it);                       // <-- here!!!
        PyList_SET_ITEM(pyOut, idx, Shiboken::Conversions::copyToPython(Shiboken::Conversions::PrimitiveTypeConverter<const char *>(), cppItem));
    }
    return pyOut;
    // TEMPLATE - cpplist_to_pylist_conversion - END

}

// cppgenerator.cpp line 3034 - 3044
    QString code = customConversion->nativeToTargetConversion();
    for (int i = 0; i < containerType->instantiations().count(); ++i) {
        AbstractMetaType *type = containerType->instantiations().at(i);
        QString typeName = getFullTypeName(type);
        if (type->isConstant())
            typeName = QLatin1String("const ") + typeName;
        code.replace(QString::fromLatin1("%INTYPE_%1").arg(i), typeName);
    }
    replaceCppToPythonVariables(code, getFullTypeNameWithoutModifiers(containerType));
    processCodeSnip(code);
    writeCppToPythonFunction(s, code, fixedCppTypeName(containerType));

// cppgenerator.cpp line 3469 - 3480
    const auto customConversion = cte->customConversion();
    QString code = customConversion->nativeToTargetConversion();
    for (qsizetype i = 0; i < containerType.instantiations().size(); ++i) {
        const AbstractMetaType &type = containerType.instantiations().at(i);
        QString typeName = getFullTypeName(type);
        if (type.isConstant())
            typeName = u"const "_s + typeName;
        code.replace(u"%INTYPE_"_s + QString::number(i), typeName);
    }
    replaceCppToPythonVariables(code, getFullTypeNameWithoutModifiers(containerType), true);
    processCodeSnip(code);
    writeCppToPythonFunction(s, code, fixedCppTypeName(containerType));