Max score is 0 when lower than 1

[Radiergummi]

The maximum score isn't set properly. For a given Elasticsearch response:

{
    "took": 8,
    "timed_out": false,
    // ...
    "hits": {
        "max_score": 0.02409755,
        // ...
    }
}

The following evaluates to true:

$collection->getMaxScore() === 0

[Radiergummi]

Fixed in f412ddf