title: Solr multiple filter tagging / excluding
body: <p>I am trying to apply filter tagging for Solr search <a href="http://wiki.apache.org/solr/SimpleFacetParameters#Tagging_and_excluding_Filters" rel="nofollow">Tagging_and_excluding_Filters</a>.</p>
  
  <p>The challenge is to apply multiple tagging at the same time (for multiple select options on a single page). e.g. </p>
  
  <p><code>q=mainquery&amp;fq=status:public&amp;fq={!tag=dt}doctype:pdf&amp;fq={!tag=doc}document:1&amp;facet=on&amp;facet.field={!ex=dt}doctype&amp;facet.field={!ex=doc}document</code></p>
  
  <p>But for some reason excluding works only for one filter and other gets unnoticed. Is there any problem with my syntax? Can anyone suggest a better method?</p>