Method `stringifyUrl` duplicates query params in some cases

[ekabolotina]

The docs of stringifyUrl method say:

Query items in the query property overrides queries in the url property

But internally when it parses the query from url, it ignores the parsing options passed to stringifyUrl (for example, arrayFormat). This leads to duplicate query keys in the final url.

For example:

const currentUrl = 'https://localhost:3000/?arr[]=item1';

const newUrl = qs.stringifyUrl(
  {
    url: currentUrl,
    query: { arr: ['item1', 'item2'] },
  },
  {
    arrayFormat: 'bracket',
    skipEmptyString: true,
    skipNull: true,
  }
);

The expected value is https://localhost:3000/?arr[]=item1&arr[]=item2.
But the final result is https://localhost:3000/?arr[]=item1&arr[]=item2&arr%5B%5D=item1.