Redux won't add `Authorization` header to slightly different URL

[Asqit]

Greetings redux developers, newbie here!

I am here to ask for help. I have application in next.js@14 and redux-toolkit + Query. Everything works smoothly and is really good, but I have this single query which makes me go crazy. So essentially I have followed the reauth guide and each of my query/mutation will have a Authorization: Bearer <token_please> in headers. That is fine, until we get to the following query and it's second part. I believe it's the URL change that makes it not to follow the desired behaviour, but I am not sure and I have no idea how to resolve this.

getNewLeads: builder.query<Lead, void>({
      async queryFn(_args, _api, _extraOpts, baseFetch) {
        const params = new URLSearchParams();

        // works fine! is authorized and works well
        const existing = await baseFetch(
          apiUrl(
            `/leads/?states=new&states=opened${params.toString() ? '&' + params.toString() : ''}`
          )
        );

        if (!existing.data || !Object.hasOwn(existing.data, 'items')) {
          return { error: existing.error as FetchBaseQueryError };
        }

        const typedExisting = (existing.data as PaginationResponse<RawLead>).items;
        if (Array.isArray(typedExisting) && typedExisting.length !== 0) {
          return {
            data: transformRawLead(typedExisting[0]),
          };
        }

       // This is the part, where we won't have authorized request and so we get 401
        const newLeads = await baseFetch(
          apiUrl(`/get-new-leads${params.toString() ? '?' + params.toString() : ''}`)
        );

        if (!newLeads.data) {
          return { error: newLeads.error as FetchBaseQueryError };
        }

        return {
          data: transformRawLead((newLeads.data as RawLead[])[0]),
        };
      },
    }),

The apiUrl function just appends the dynamic versioning ... /api/v1, /api/v2. To keep this issue short, for now I will not provide my baseQuery and my authorizedBaseQuery as it's litterally the same as is in docs. (+- baseUrl, timeout )

Please, pretty please, help me solve this, I already spent god knows many hours on this.