Github user xristy commented on the issue:
https://github.com/apache/jena/pull/335
Happy to. Here's a brief statement:
This release includes updates to the Jena Lucene integration that reduces
the size of the documents indexed by Lucene and reduces the size of the
resulting indexes. Re-indexing is not necessary as the changes are compatible
with existing indexes. Additionally, there is an optional output argument for
`text:query` that allows to retrieve the graph that contains a result triple.
See the updated [jena text
documentation](http://jena.apache.org/documentation/query/text-query.html).
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