fix #814266: at creation time, you 'are not allowed to perform add operation...

fix #814266: at creation time, you 'are not allowed to perform add operation on relation Expense spent_for Workcase' by fixing rql expression used for add/delete permission checking

migration/0.5.1_Any.py

+sync_schema_props_perms('spent_for', syncprops=False)

schema.py

@@ -8,6 +8,6 @@
     cardinality = '?*'
     __permissions__ = {
         'read' : ('managers', 'users'),
-        'add': ('managers', RRQLExpression('S in_state ST, NOT ST name "accepted"')),
-        'delete': ('managers', RRQLExpression('S in_state ST, NOT ST name "accepted"')),
+        'add': ('managers', RRQLExpression('NOT (S in_state ST, ST name "accepted")')),
+        'delete': ('managers', RRQLExpression('NOT (S in_state ST, ST name "accepted")')),
         }