Hi Claus,
wildcard search (using * and ? from the Lucene query language) will also work on non-analyzed fields, but the behavior is different. On analyzed fields, the wildcard search is terms-based whereas non-analyzed fields have to match completely.
See wildcard and regexp Queries | Elasticsearch: The Definitive Guide [2.x] | Elastic for details.
Could you please point out the exact position where in the documentation this is mentioned?
Cheers,
Jochen