MDL-8100, defaultgrade not imported. Question obect initialisation an…

…d value import wrong way round - whoops!

question/format/xml/format.php

@@ -98,6 +98,7 @@ function import_optional_text($subelement, $question) {
      */
     function import_headers( $question ) {
         // this routine initialises the question object
+        $qo = $this->defaultquestion();
         $name = $this->import_text( $question['#']['name'][0]['#']['text'] );
         $qtext = $this->import_text( $question['#']['questiontext'][0]['#']['text'] );
         $qformat = $question['#']['questiontext'][0]['@']['format'];
@@ -114,9 +115,9 @@ function import_headers( $question ) {
         if (!empty($question['#']['defaultgrade'][0]['#'])) {
             $qo->defaultgrade = $question['#']['defaultgrade'][0]['#'];
         }
+
         $penalty = $question['#']['penalty'][0]['#'];
 
-        $qo = $this->defaultquestion();
         $qo->name = $name;
         $qo->questiontext = $qtext;
         $qo->questiontextformat = $this->trans_format( $qformat );