Fixed issue #08409: no zéro trim if value of numeric field is "0"

Dev: only need to remove last 0 after dot due to decimal SQL
Dev: maybe better to do it elsewhere for 2.1 question plugins

application/helpers/qanda_helper.php

@@ -3427,13 +3427,11 @@ function do_numerical($ia)
     $fValue=$_SESSION['survey_'.Yii::app()->getConfig('surveyID')][$ia[1]];
     $sSeparator = getRadixPointData($thissurvey['surveyls_numberformat']);
     $sSeparator = $sSeparator['separator'];
-    // Fix the display value : remove extra 0 left, extra 0 rigth after dot and remove dot if it's at end
-    // TODO : use a function and do it with other numeric question type or move it to EM (if we need to fix display value ?)
+    // Fix the display value : Value is stored as decimal in SQL then return dot and 0 after dot. Seems only for numerical question type
     if(strpos($fValue,"."))
     {
         $fValue=rtrim(rtrim($fValue,"0"),".");
     }
-    $fValue = ltrim($fValue,"0");
     $fValue = str_replace('.',$sSeparator,$fValue);
 
     if ($thissurvey['nokeyboard']=='Y')