Use the fullclone function instead of clone() because objects are in an array bug...

diff --git a/question/type/datasetdependent/datasetitems.php b/question/type/datasetdependent/datasetitems.php
index 4b68c4170ac902cc00501d66193d7892f1e14966..41748984afada938e974cf68b453456d6d870054 100644 (file)
--- a/question/type/datasetdependent/datasetitems.php
+++ b/question/type/datasetdependent/datasetitems.php
@@ -29,7 +29,7 @@
     }
 
     // Handle generator options...
-    $olddatasetdefs = clone($datasetdefs);
+    $olddatasetdefs = fullclone($datasetdefs);   // Completely deep copy the array of objects
     $datasetdefs = $this->update_dataset_options($olddatasetdefs, $form);
     $maxnumber = -1;
     $datasets = empty($form->dataset) ? $form->definition : $form->dataset;