Fixed issue #8143: Survey crashes when changes are made

LimeSurvey · Sep 26, 2013 · 2f450a1 · 2f450a1 · Shnoulle · Sep 26, 2013
1 parent babfa3e
commit 2f450a1
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/application/helpers/expressions/em_manager_helper.php b/application/helpers/expressions/em_manager_helper.php
@@ -4100,6 +4100,7 @@ static function NavigateBackwards()
                     while (true)
                     {
                         $LEM->currentQset = array();    // reset active list of questions
+                        if (is_null($LEM->currentGroupSeq)) {$LEM->currentGroupSeq=0;} // If moving backwards in preview mode and a question was removed then $LEM->currentGroupSeq is NULL and an endless loop occurs.
                         if (--$LEM->currentGroupSeq < 0)
                         {
                             $message .= $LEM->_UpdateValuesInDatabase($updatedValues,false);