Bad request when using "é", "à", "è", ... in a filter
I get {"status":400,"error":"error not json"} when I try to use special characters in a filter (e.g. name filter).
With the following command, I get 400 Bad Request as well:
curl -G --data-urlencode 'filter={"name": {"op": "substring", "val": "è"}}' http://localhost:8000/marv/api/collection