[Dovecot] [BUG] Lucene plugin breaks header substring search

[Timo Sirainen]

On 16.10.2012, at 6.51, Dave Abrahams wrote:

>> plugin {
>>  fts_lucene = whitespace_chars=@.
>> }
> 
> Do I also need
> 
> plugin {
>  fts = lucene
> }
> 
> or are these mutually exclusive, or...?  It's not clear from 
> http://wiki2.dovecot.org/Plugins/FTS/Lucene

fts setting selects which backend to use. fts_lucene gives settings to that backend.