Description of problem:
With ReteOO and a rule with a temporal condition creating a timer (eg after), the timer is created only if the first member of the condition is 'this'.
If 'this' is mapped to a local variable or the condition is reversed (using "ev before this" for example), the timer is not created and the condition doesn't seem to evaluate.

The code causing this is in org.drools.core.rule.Declaration:
    public boolean isPatternDeclaration() {
        return ( this.pattern != null && this.pattern.getDeclaration() == this ) || this.getIdentifier().equals( "this" ) ;
    } 

This may not be a problem because we are in a negative CE, but it looks like one because it works with the other rule.

Version-Release number of selected component (if applicable):
6.0.0.CR5

How reproducible:
Use the JUnit test in the Maven project attached.

Steps to Reproduce:
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Actual results:


Expected results:


Additional info: