MDL-57139 assign: ensure promise best practices

diff --git a/mod/assign/amd/src/participant_selector.js b/mod/assign/amd/src/participant_selector.js
index f1d055e..1323c77 100644 (file)
--- a/mod/assign/amd/src/participant_selector.js
+++ b/mod/assign/amd/src/participant_selector.js
@@ -107,6 +107,7 @@ define(['core/ajax', 'jquery', 'core/templates'], function(ajax, $, templates) {
                 }
 
                 success(users);
+                return;
             }).catch(failure);
         }
     };