title: How do you open a closed redmine issue?
body: <p>I have noticed that it is possible to re-open a closed RedMine issue when using one of the default trackers e.g. the "Defect" tracker.  However, it appears that if you create your own tracker, it is not possible to open a closed issue.  I believe I have checked "roles and permissions" but feel it is down to the tracker configuration.</p>
  
  <p>Has anyone else noticed this and, if so, how have you overcome the problem?</p>