I notice an unexpected behavior when creating a technical DRL in Guvnor.

If I have a fact with a sub-fact, then binary operators don't seem to be commutative.

Eg.,

declare Broker
    maxQ: Integer

declare Order
    q: Integer
    b: Broker

The rule
    $o:Order($o.b.maxQ < $o.q)
validates fine, but
    $o:Order($o.q > $o.b.maxQ)
returns an error "Unable to create restriction '[QualifiedIndentifierRestr: > $o.broker.maxQ ]' for field '$o.q' in the rule"

I'm new, so I want to make sure I'm not missing something obvious here...