Christoph Büscher a40c397c67 Don't allow fuzziness for multi_match types cross_fields, phrase and phrase_prefix
Currently `fuzziness` is not supported for the `cross_fields` type
of the `multi_match` query since it complicates the logic that
blends the term queries that cross_fields uses internally. At the
moment using this combination is silently ignored, which can lead to
confusions. Instead we should throw an exception in this case.
The same is true for phrase and phrase_prefix type.

Closes #7764
2016-05-13 17:32:14 +02:00
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