Merge branch 'MDL-64151-35-fix' of https://github.com/marinaglancy/mo…

…odle into MOODLE_35_STABLE
moodle · Apr 24, 2019 · b6af039 · b6af039
2 parents b7f0a3f + 69e9f23
commit b6af039
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/form/select.php b/lib/form/select.php
@@ -166,7 +166,7 @@ function getElementTemplateType(){
     */
     function exportValue(&$submitValues, $assoc = false)
     {
-        $emptyvalue = $this->getMultiple() ? [] : '';
+        $emptyvalue = $this->getMultiple() ? [] : null;
         if (empty($this->_options)) {
             return $this->_prepareValue($emptyvalue, $assoc);
         }