Phrase queries from query strings ignore boosts

gistfile1.sh

curl -XDELETE "http://localhost:9200/test?pretty"
curl -XPOST "http://localhost:9200/test?pretty" -d '{
  "settings": {
    "index": {
      "number_of_shards": 1,
      "number_of_replicas": 0
    }
  }
}'

curl -XGET 'http://localhost:9200/_cluster/health?pretty=true&wait_for_status=yellow'

curl -XPOST "http://localhost:9200/test/test?pretty" -d '{"important": "phrase match", "less_important": "junk"}'
curl -XPOST "http://localhost:9200/test/test?pretty" -d '{"important": "not good", "less_important": "phrase match"}'

curl -XPOST 'http://localhost:9200/test/_refresh?pretty'

curl -XGET "http://localhost:9200/test/test/_search?pretty" -d '{
  "query": {
    "query_string": {
      "query": "\"phrase match\"",
      "fields": [ "important^10.0", "less_important" ],
      "auto_generate_phrase_queries": true
    }
  }
}'