Hi all,
I am facing a problem with persisted stateful knowledge session, please help me. My rule is listed as below:

package com.sample
import com.sample.Event;
import java.util.List;

declare Event
  @role(event)
end

rule "test"
  when
    $list : List() from collect(Event() over window: length(2))
  then
    System.out.println("----print out in rule, size of the list collected from window is:" + $list.size());
end

The problem is,

when use a normal stateful session(created by the calling kbase.newStatefulKnowledgeSession()), when a third fact inserted, the session working memory only retains list of 2, as expected.
when use a persisted stateful session(created by the calling JPAKnowledgeService.newStatefulKnowledgeSession()), insert 2 facts first. Then restore this session by JPAKnowledgeService.loadStatefulKnowledgeSession(), and insert a third fact, the session working memory grows to list of 3?

  By the way, I am using version 5.2.0.Final. And after I upgrade to version 5.4.0.Final, the test result of persisted session becomes to normal.The attachment is my test program and you can repeat it.
  I want to ask you if there is something missing that I need to do in 5.2.0.Final?
  Thank you in advance, any help will be appreciated. drools-session-persis-demo.zip

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