• user_api.php
  (user_get_field): add a WARNING so we make sure to track down why a user_id of 0 is being used
  (user_get_name): put it back to use user_cache_row() so we can prevent an error from occurring when the row doesn't exist

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@1575 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9