I'm creating a drupal view based on civicontact. The fields are user id, user roles, I link to civicrm_uf_match table to get the contact id, then add a field for the tags associated with that contact. The problem is that each tag is shown on a separate row. This does not happen with user roles, the are shown as a single comma delimited text field, which is what I wanted to have happen with the civiCRM tags. What am I doing wrong?