Failed to recognize method with parameter on fact during unmarshalling

Hi, I'm not sure if I put this issue in the right component.

Considering the below DRL. Parent is a fact type and methodToGetChild1 is a method in this fact class :

package org.mortgages;
rule "test"
dialect "mvel"
when
        Parent(methodToGetChild1("IAmAParameter") > 5 )
then
end

When calling

RuleModelDRLPersistenceImpl.getInstance().unmarshal

on this drl, the method 'methodToGetChild1' is recognized as field instead of fact method. This is due to expression detection. Cf linked pull request.