[Solved]Can't Update Workflow Task Properties

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I am trying to update task properties with data captured from the previous task in the same workflow.  I've read all of the previous posts on this topic, but I am still having a problem.  Using Javascript taskInstance.setVariable("wf:someproperty", somevalue) in the task-create event of the second task I have successfully updated the property in the task model and it displayed in the workflow UI for the second task.  However, I am trying to update two properties, but only one property actually gets updated.  I confirmed the updates via the workflow console. The taskInstance statements are contained in the task-create event of the second task.  I can see via logger.log that the somevalue variables are populated prior to the setVariable.  The properties I am updating are part of a mandatory aspect attached to all of the tasks in the workflow.  The "requestShortDescription" property updates everytime and the "department" property never updates. 

As a test I removed constraints from the task model for the property that was not updating (department) thinking that this somehow was causing a problem, but this hasn't helped.  Has anyone experienced only some properties getting updated via taskInstance.setVariable?  Any suggestions? 

<process-definition  xmlns="urn:jbpm.org:jpdl-3.2"  name="ncwf:reviewapprovePurchaseRequest">   <swimlane name="initiator"></swimlane>   <start-state name="Start">      <task name="ncwf:submitPurchaseRequestTask" swimlane="initiator"/>      <transition to="InitiateRequest"></transition>         <event type="task-end">           <action class="org.alfresco.repo.workflow.jbpm.AlfrescoJavaScript">            <script>               <expression>                  var requestShortDescription = taskInstance.getVariable("ncwf_requestShortDescription");                  executionContext.setVariable("ncwf_requestShortDescription",requestShortDescription);                  var department = taskInstance.getVariable("ncwf_department");                  executionContext.setVariable("ncwf_department",department);               </expression>            </script>         </action>       </event>   </start-state>      <swimlane name="assignee">      <assignment class="org.alfresco.repo.workflow.jbpm.AlfrescoAssignment">         <actor>#{bpm_assignee}</actor>      </assignment>   </swimlane>   <node name="InitiateRequest">      <transition to="Review" name="toReview"></transition>   </node>      <task-node name="Review">      <task name="ncwf:reviewPurchaseRequestTask" swimlane="assignee" />        <transition to="Approved" name="toApproved">   </transition>      <transition to="Rejected" name="toRejected">   </transition>            <event type="task-create">         <action class="org.alfresco.repo.workflow.jbpm.AlfrescoJavaScript">            <script>               <expression>                  var department=executionContext.getVariable("ncwf_department");                  taskInstance.setVariable("ncwf:department", department);                   var requestShortDescription=executionContext.getVariable("ncwf_requestShortDescription");                  taskInstance.setVariable("ncwf:requestShortDescription", requestShortDescription);                </expression>               </script>         </action>         </event>         </task-node>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

<?xml version="1.0" encoding="UTF-8"?><model name="ncwf:wfModelPurchaseRequest" xmlns="http://www.alfresco.org/model/dictionary/1.0">   <description>Custom Workflow Model</description>   <version>1.0</version>      <imports>         <import uri="http://www.alfresco.org/model/dictionary/1.0" prefix="d" />            <import uri="http://www.alfresco.org/model/bpm/1.0" prefix="bpm"/>   </imports>               <namespaces>      <namespace uri="http://www.alfresco.org/model/workflow/nc/1.0" prefix="ncwf"/>         </namespaces>            <types>               <!–  Basic Review & Approve Tasks –>                     <!–                               –>         <type name="ncwf:submitPurchaseRequestTask">                  <parent>bpm:startTask</parent>                              <overrides>                           <property name="bpm:packageActionGroup">                                    <default>add_package_item_actions</default>                           </property>            <property name="bpm:packageItemActionGroup">                                       <default>edit_package_item_actions</default>                           </property>                     </overrides>                  <mandatory-aspects>                        <aspect>bpm:assignee</aspect>                           <aspect>ncwf:requestData</aspect>                      </mandatory-aspects>      </type>                  <type name="ncwf:reviewPurchaseRequestTask">                     <parent>bpm:workflowTask</parent>            <overrides>                           <property name="bpm:packageItemActionGroup">                                       <default>edit_package_item_actions</default>                           </property>                     </overrides>                  <mandatory-aspects>            <aspect>bpm:assignee</aspect>            <aspect>ncwf:requestData</aspect>                     </mandatory-aspects>            </type>         </types>                           <aspects>         <aspect name="ncwf:requestData">            <properties>               <property name="ncwf:requestShortDescription">                  <type>d:text</type>                  <mandatory>true</mandatory>                  <default></default>               </property>               <property name="ncwf:department">                  <type>d:text</type>                  <mandatory>true</mandatory>                  <default></default>                  <constraints>                     <constraint type="LIST">                        <parameter name="allowedValues">                           <list>                              <value>Information Technology</value>                              <value>Marketing</value>                              <value>Sales</value>                              <value>Finance</value>                           </list>                        </parameter>                        <parameter name="caseSensitive"><value>true</value></parameter>                     </constraint>                  </constraints>               </property>               <property name="ncwf:approvedAmount">                  <type>d:int</type>                  <mandatory>false</mandatory>                  <default>0</default>                  <constraints>                     <constraint type="MINMAX">                        <parameter name="minValue"><value>0</value></parameter>                        <parameter name="maxValue"><value>999999</value></parameter>                     </constraint>                  </constraints>               </property>            </properties>         </aspect>      </aspects></model>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

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This problem has been solved per http://forums.alfresco.com/en/viewtopic.php?f=34&t=22803

The property that I could not update had a default value set in the model.  Once I removed the default value, the property is updated correctly. 

While this solved the problem, I question whether this is proper behavior.  My assumption was that by the time the task-create event fires, that the properties had already received their default values.  In that I can read property values (e.g., taskId) in the task-create event, I assumed that other properties had already received their default values.  It would seem that the default values are assigned after the task-create event so therefore, the values I had set were overwritten.