Merge pull request #1739 from A-Lawrence/feature/fixes-1736

Clear overdue on close

Reviewed-By: Jared Hancock <jared@osticket.com>

.gitignore

@@ -17,3 +17,4 @@ stage
 # Ignore mPDF temp files
 include/mpdf/ttfontdata
 include/mpdf/tmp
+nbproject/

include/class.ticket.php

@@ -847,6 +847,7 @@ class Ticket {
                 $sql.=', closed=NOW(), duedate=NULL ';
                 if ($thisstaff && $set_closing_agent)
                     $sql.=', staff_id='.db_input($thisstaff->getId());
+                $this->clearOverdue();
 
                 $ecb = function($t) {
                     $t->reload();