Index: /trunk/src/VBox/ValidationKit/testmanager/core/schedulerbase.py
===================================================================
--- /trunk/src/VBox/ValidationKit/testmanager/core/schedulerbase.py	(revision 65033)
+++ /trunk/src/VBox/ValidationKit/testmanager/core/schedulerbase.py	(revision 65034)
@@ -1385,5 +1385,5 @@
                 # We may have to skip scheduling groups that are out of work (e.g. 'No build').
                 iInitialWorkItem     = iWorkItem;
-                dIgnoreSchedGroupIds = [];
+                dIgnoreSchedGroupIds = {};
                 while True:
                     # Now, pick the scheduling group.