Overriding the fetch client in apollo client leads to request matching fail

[formatlos]

Describe the bug
Overriding the used fetch client in Apollo Client with ky (which is fetch compatible) leads to failures in the request matching algorithm. I'm using ky to have a central (single source of truth) for setting headers like Authorization on all request through a beforeRequest hook

const fetchClient = ky.create({
  hooks: {
    beforeRequest: [
      (request) => {
        request.headers.set('Authorization', `Bearer ${access_token}`);
      },
    ],
  },
});

const httpLink = new HttpLink({
    uri: '',
    fetch: fetchClient,
  });

Expected behavior
Graphql requests still get matched.

Additional context
Add any other context about the problem here.

I've inspected the difference between the fetch and the ky calls (chrome.webRequest.WebRequestBodyDetails):

ky

{
    "documentId": "50EF69BBAF89263539823056234B884C",
    "documentLifecycle": "active",
    "frameId": 0,
    "frameType": "outermost_frame",
    "initiator": "http://localhost:3000",
    "method": "POST",
    "parentFrameId": -1,
    "requestBody": {
      "error": "Unknown error."
    },
    "requestId": "143649",
    "tabId": 420505696,
    "timeStamp": 1772205719634.835,
    "type": "xmlhttprequest",
    "url": "..."
  }

fetch

{
    "documentId": "565CADCE046FB1B0AD9B3329B18A8216",
    "documentLifecycle": "active",
    "frameId": 0,
    "frameType": "outermost_frame",
    "initiator": "http://localhost:3000",
    "method": "POST",
    "parentFrameId": -1,
    "requestBody": {
      "raw": [
        {
          "bytes": {}
        }
      ]
    },
    "requestId": "138471",
    "tabId": 420505696,
    "timeStamp": 1772205538801.859,
    "type": "xmlhttprequest",
    "url": "..."