> I'd guess that this is because SnowballPorterFilterFactory > does not implement MultiTermAwareComponent. Not sure, though.
Yes, I think this hinders the automagically multiterm awarness to do it's job. Could an own analyzer chain with <analyzer type="multiterm"> help? Like described (very, very short, too short...) here: http://wiki.apache.org/solr/MultitermQueryAnalysis