trigger event with workflow input failed,the workflow input value is the value of startworkflow.

1:create a new workflow with an input named Input1 in designer.
2:add an WriteLine ativity named WriteLine1 , it's property text is a javascript expression:getInput("Input1")
3:add an Event ativity named event001 to pause the workflow.
4:add another WriteLine ativity named WriteLine2, it's property text is also a javascript expression:getInput("Input1")
5:link WriteLine1 to event001 and link event001 to WriteLine2
6:start this workflow with Input1=100
7:trigger event001 with Input1=102
8:WriteLine1 ouput 100 and WriteLine2 also output 100 but not 102,it's not the expected result

is the flowing code in EventPublisher.cs line 60-63 cause this bug?
thanks.