title: How to push site columns updates to content types
body: <p>here's my scenario: a wrote a job definition that updates a MultiChoice site column, filling in with audiences:</p>
  
  <pre><code>&lt;Field ID="{fcc46300-de6e-481e-ac2c-000000000001}"
         Name="Audiences"
         DisplayName="$Resources:Project,Audiences;"
         Type="MultiChoice"
  </code></pre>
  
  <p>Thing is, if I add the site column directly to a list, I see the choices. But, if the same site column is being added through a content type that references it, I don't see the choices.</p>
  
  <p>I understand that SharePoint creates copies of content types and fields for each list, but - how should I be able to update the content types to include the changes made to the site column? I'm having trouble doing that.</p>
  
  <p>Thanks in advance!</p>
  
  <p>UPDATE: I finally decided, as a workaround, to push the changes to the copy of the field present in each list. That obviously works. Which makes me think about the nature of content types as artifacts for creation time, leaving the objects brought to each list through the content type carry their own lives... isn't that a descriptive metaphor?</p>