question about Wfp06MultiChoiceTest?

[jeffen2006]

sorry my English is poor.
i try to change Wfp06MultiChoice's processdefine from String to xml,and deploy to database,but when i test ,it can't select singleness,it always fork to both transition.why?
-------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<process-definition xmlns="" name="yytest">
<start-state name='start'>

</start-state>





scenario == 1


scenario == 2











<end-state name="end"></end-state>
</process-definition>
--------------------------------------------------------------
processInstance = jbpmContext.loadProcessInstance(processInstanceId);
ContextInstance ci = (ContextInstance) processInstance.getInstance( ContextInstance.class );
processInstance.signal();
ci.setVariable("scenario", new Integer(1));
Token root = processInstance.getRootToken();
System.out.println(root.getNode());
root.signal();
System.out.println(root.getNode());
Token tokenB = root.getChild("to b");
Token tokenC = root.getChild("to c");
tokenB.signal();
System.out.println("tokenB:"+tokenB.getNode());
System.out.println("tokenC:"+tokenC.getNode());
System.out.println(root.getNode());
System.out.println(ci.getVariable("scenario"));
---------------------------------------------------
result:

State(a)
Fork(multichoice)
tokenB:Join(syncmerge)
tokenC:State(c)
Fork(multichoice)
1

[jeffen2006]

xml file:
-------------------------------------------------------
<process-definition name="process">
<start-state name='start'>

<!--</span-->start-state>


<!--</span-->state>


#{scenario == 1} or #{scenario >= 3}<!--</span-->condition>
<!--</span-->transition>

#{scenario == 2} or #{scenario >= 3}<!--</span-->condition>
<!--</span-->transition>
<!--</span-->fork>


<!--</span-->state>


<!--</span-->state>


<!--</span-->join>
<!--</span-->process-definition>

[jeffen2006]

xml file:

<?xml version="1.0" encoding="UTF-8"?>
<process-definition xmlns="" name="yytest">
 <start-state name='start'>
 <transition to='a' />
 </start-state>
 <state name='a'>
 <transition to='multichoice' />
 </state>
 <fork name='multichoice'>
 <transition name='to b' to='b'>
 <condition>scenario == 1</condition>
 </transition>
 <transition name='to c' to='c'>
 <condition>scenario == 2</condition>
 </transition>
 </fork>
 <state name='b'>
 <transition to='syncmerge' />
 </state>
 <state name='c'>
 <transition to='syncmerge' />
 </state>
 <join name='syncmerge'>
 <transition to='end' />
 </join>
 <end-state name="end"></end-state>
</process-definition>