commit 4173fd30f7688359e349f42398b310f0e477ab69
Author: Ashley Holman <ashley@netspot.com.au>
Date:   Wed May 29 15:37:01 2013 +0930

    MDL-39991 mod/assign Allow feedback files to be nested in subdirs in zip

diff --git a/mod/assign/feedback/file/importziplib.php b/mod/assign/feedback/file/importziplib.php
index b31bcb6..96ac6a3 100644
--- a/mod/assign/feedback/file/importziplib.php
+++ b/mod/assign/feedback/file/importziplib.php
@@ -234,7 +234,7 @@ class assignfeedback_file_zip_importer {
                                           'assignfeedback_file',
                                           ASSIGNFEEDBACK_FILE_IMPORT_FILEAREA,
                                           $USER->id,
-                                          '/import/');
+                                          '/import/', true);
 
         return $files;
     }
@@ -262,7 +262,7 @@ class assignfeedback_file_zip_importer {
                                           'assignfeedback_file',
                                           ASSIGNFEEDBACK_FILE_IMPORT_FILEAREA,
                                           $USER->id,
-                                          '/import/');
+                                          '/import/', true);
 
         $currentgroup = groups_get_activity_group($assignment->get_course_module(), true);
         $allusers = $assignment->list_participants($currentgroup, false);