slapos_crm: Test ComputeNode_getTicketRelatedList

master/bt5/slapos_crm/SkinTemplateItem/portal_skins/slapos_crm_monitoring/ComputeNode_getTicketRelatedList.py

@@ -8,7 +8,8 @@ uid_list = [context.getUid()]
 computer_partition_uid_list = [
   cp.getUid() for cp in context.contentValues(portal_type="Compute Partition") if cp.getSlapState() == 'busy']
 
-for instance in portal.portal_catalog(
+if computer_partition_uid_list:
+  for instance in portal.portal_catalog(
     portal_type="Software Instance",
     select_dict={'specialise_uid': None},
     specialise_portal_type="Instance Tree",