[rules-users] simple subtraction in drools 5.3 fires rules

[gqmulligan]

I am very sorry for all of my nonsense.  My Drools was for some reason having
an issue with the ruleflow-group and after I removed it my first rule
behaved as yours and fired when it shouldn't have.

I know you are probably just going to stick with version 5.4 but if you put
a space between the "-" and the number so your rule looks as follows:

rule "DummyRule" 
  when 
        d1 : Dummy()         
        d2 : Dummy(y2 == d1.y1, (x1 == (d1.x2 - 150) || x2 == (d1.x2 -
150)))         
    then         
        System.out.println("Rule DummyTest fired");                   
end 

it should work in Drools 5.3 (At least for me it did).

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