Omitting tf but not positions

[Jan Høydahl / Cominvent]

Hi,

I have a case where I use DisMax "pf" to boost on phrase match in a field. I 
use omitNorms=true to avoid length normalization to mess with my scores.

However, for some documents, the phrase "foo bar" occur more than one time in 
the same field, and I get an unintended TF boost for one of them

    1.4142135 = tf(phraseFreq=2.0)
vs
    1.0 = tf(phraseFreq=1.0)

I could use omitTermFreqAndPositions but that would disable phrase search 
ability, wouldn't it?
Any way to disable TF/IDF normalization without also disabling positions?

Solr 1.4.1

--
Jan Høydahl, search solution architect
Cominvent AS - www.cominvent.com