[jboss-jira] [JBoss JIRA] Created: (JBRULES-1804) Logical insertion lingers after the rule that inserted it no longer supports it (with testcase patch)

[Geoffrey De Smet (JIRA)]

Logical insertion lingers after the rule that inserted it no longer supports it (with testcase patch)
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                 Key: JBRULES-1804
                 URL: https://jira.jboss.org/jira/browse/JBRULES-1804
             Project: JBoss Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-core  (expert)
    Affects Versions:  5.0.0.M2
            Reporter: Geoffrey De Smet
            Assignee: Edson Tirelli
            Priority: Critical
             Fix For: 5.0.0.M3


This one got me headscratching for a while, untill I realized what the problem is.
Tim reported on the mailing list he ran into it to.

I've commmited a testcase in subversion, in TruthMaintenanceTest, called
   disabled_testLogicalInsertionsModifySameRuleGivesDifferentLogicalInsertion
Remove the "disabled_" to enable it and try it out.

Here's what happens in the testcase:
3 sensors with tempature 100, 200 and 200 are inserted.
There's a rule which logically inserts all encountered tempatures, so 100 and 200.
Then the first sensor modifies to a tempature of 150.
As it turns out, the encoutered tempatures should be 150 and 200 now, but instead it's 100, 150 and 200.
Even though there is no sensor that has a tempature of 100.

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