title: Identical solr queries finds things based on one field but not based on another
body: <p>I am having trouble with solr searches, it appears some fields are not working and I can't understand why. Lets say I have this object (there is a lot of data here that can be ignored, but I didn't want to cut it out in case it was relevant).</p>
  
  <pre><code>{
      "category":["INFOGRAPHIC"],
      "user_ref":"F_6fd87c",
      "first_name_text":["Erik"],
      "location_text":["AM  "],
      "_ts":5972482969498025988,
      "recommended_by":["E_45588d"],
      "hourly_rate_text":["100"],
      "is_staff_recommended":false,
      "ns":"users_db.solr_portfolios",
      "last_name_text":["Freelancer"],
      "title_text":["Really 50"],
      "description_text":["."],
      "is_recommended":true,
      "_id":"F_6fd87c:portfolio-XgPaREUfhuYp",
      "_version_":1458125725674504192
  }
  </code></pre>
  
  <p>I can successfully hit this document by doing a query like:</p>
  
  <pre><code>select?q=category:INFOGRAPHIC
  </code></pre>
  
  <p>However, the following query will NOT hit the document:</p>
  
  <pre><code>select?q=hourly_rate_text:100
  </code></pre>
  
  <p>Why not? I'm not very skilled in solr so I might be missing something completely obvious, but what is the difference between these two fields? Both contain a string, I query with a perfect match on the string, how can it not find it? I even tried setting the field to "ASD" just to be sure it was not the numbers that somehow messed it up.</p>
  
  <p>Solr gives me headaches... </p>