Don't show due dates in red if issue is closed

The related issues widget (and in issue boards) shows the due date of issues and turns to a red date if the due date is in the past. A perfect feature, but unfortunately the due date keeps being displayed in red even if the related issue is closed - creating the false impression that a due date has been missed.

Proposal

Only show due dates in related issues and issue boards in red if the due date has been missed and the issue is still open.