Custom mutation mocking fails

[dovranJorayev]

Mocking of custom mutations created via createMutation factory is impossible to mock while createJsonMutation instance is mocking good.

const customMutation = createMutation({
  effect: createEffect(async () => ({
    fileUrl: 'mock-url-valid-image.jpg',
  })),
  contract: zodContract(MutationDataSchema),
});

  it('json query should be mocked even if mutation also been mocked', async () => {
    const scope = fork({
      handlers: [
        [
          jsonQuery.__.executeFx,
          () =>
            Promise.resolve({
              id: 1,
              name: 'test',
            } satisfies QueryData),
        ],
        // If comment this test passes
        [
          customMutation.__.executeFx,
          () =>
            Promise.resolve({
              fileUrl: 'mock-url-valid-image.jpg',
            }),
        ],
      ],
    });

    await allSettled(jsonQuery.start, { scope });

    expect(scope.getState(jsonQuery.$error)).toBeNull();
    expect(scope.getState(jsonQuery.$data)).toEqual({
      id: 1,
      name: 'test',
    });
  });

Also there are other cases described in stackblitz