Bug with nested results for TRichSelect

[amkatyshev]

I found one interesting point related to the work of TRichSelect
Generating nested elements requires a children key,
In my case, the data for TRichSelect is generated using FetchOptions and as a result I get the following data:

{
    id: 1,
    name: '1',
    children: [
        {id: 2, name: '2'},
        {id: 3, name: '3'},
    ]
}

Unfortunately for nested childrens, the normalizeOptions function ignores the textAttribute and valueAttribute data. Hence it turns out that the list is not rendered correctly.
I think that the normalizeOptions function needs to be fixed as follows:

const normalizeOptions = (options, textAttribute, valueAttribute) => {
    ...
    if (Array.isArray(options)) {
        return options.map((option) => normalizeOption(option, textAttribute, valueAttribute));
    }
    ...
};

But after these edits, it will be necessary to check the correctness of the render of the optGroup