Aggregates API recipientOrgDistrictName has differing filter URL

The url output for aggregates is

```
url": "/api/aggregates/search.aggregates_api.aggregates_api?
```

instead of:

```
"url": "/search?query=%2A&default_field=%2A&sort=_score+desc&fundingOrganization=GB-CHC-255230",
```

We used to ignore this difference via the URL pattern but that has now changed since upgrade 