Support lack of step change for a transition in the workflow

OSWorkflow supports no transition to another step on a transition for common and global actions (http://wiki.opensymphony.com/display/WF/3.3+Common+and+Global+Actions).

However, it isn't working for me in JIRA. Either there is a bug in Jira, in OSWorkflow, or I'm doing something wrong.

When I try this in a workflow imported into JIRA I get the following in the tomcat log file when I attempt to run the
transition:

2005-12-28 10:15:59,972 ERROR [atlassian.jira.workflow.SimpleWorkflowManager] An exception occurred
java.lang.NullPointerException
at com.opensymphony.workflow.AbstractWorkflow.createNewCurrentStep(AbstractWorkflow.java:1130)
at com.opensymphony.workflow.AbstractWorkflow.transitionWorkflow(AbstractWorkflow.java:1426)
at com.opensymphony.workflow.AbstractWorkflow.doAction(AbstractWorkflow.java:533)
at com.atlassian.jira.workflow.SimpleWorkflowManager.doWorkflowAction(SimpleWorkflowManager.java:211)
at com.atlassian.jira.workflow.WorkflowTransitionUtilImpl.progress(WorkflowTransitionUtilImpl.java:259)
at com.atlassian.jira.web.action.issue.CommentAssignIssue.doExecute(CommentAssignIssue.java:187)
at webwork.action.ActionSupport.execute(ActionSupport.java:153)
at com.atlassian.jira.action.JiraActionSupport.execute(JiraActionSupport.java:51)
at webwork.dispatcher.GenericDispatcher.executeAction(GenericDispatcher.java:132)
at com.atlassian.jira.web.dispatcher.JiraServletDispatcher.service(JiraServletDispatcher.java:178)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.jira.web.filters.AccessLogFilter.doFilter(AccessLogFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:119)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:55)
at com.atlassian.jira.web.filters.SitemeshExcludePathFilter.doFilter(SitemeshExcludePathFilter.java:38)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:182)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java:177)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:132)
at com.atlassian.jira.web.filters.ProfilingAndErrorFilter.doFilter(ProfilingAndErrorFilter.java:25)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.jira.web.filters.ActionCleanupDelayFilter.doFilter(ActionCleanupDelayFilter.java:37)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.johnson.filters.JohnsonFilter.doFilter(JohnsonFilter.java:91)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.jira.web.filters.gzip.GzipFilter.doFilter(GzipFilter.java:72)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:37)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)

the following is the workflow action I wrote:

<common-actions>
    <action id="2003" name="Edit Issue (common)" view="fieldscreen">
      <meta name="jira.fieldscreen.id">10010</meta>
      <meta name="jira.description">Edit Issue (for Client)</meta>
      <restrict-to>
        <conditions>
          <condition type="class">
            <arg name="group">pi-clients</arg>
            <arg name="class.name">
              com.opensymphony.workflow.util.OSUserGroupCondition
            </arg>
          </condition>
        </conditions>
      </restrict-to>
      <results>
        <unconditional-result old-status="Not Done" status="Done" step="0">
          <post-functions>
            <function type="class">
              <arg name="class.name">com.atlassian.jira.workflow.function.issue.UpdateIssueStatusFunction</arg>
            </function>
            <function type="class">
              <arg name="class.name">com.atlassian.jira.workflow.function.misc.CreateCommentFunction</arg>
            </function>
            <function type="class">
              <arg name="class.name">com.atlassian.jira.workflow.function.issue.GenerateChangeHistoryFunction</arg>
            </function>
            <function type="class">
              <arg name="class.name">com.atlassian.jira.workflow.function.issue.IssueReindexFunction</arg>
            </function>
            <function type="class">
              <arg name="class.name">com.atlassian.jira.workflow.function.event.FireIssueEventFunction</arg>
              <arg name="eventType">updated</arg>
            </function>
          </post-functions>
        </unconditional-result>
      </results>
    </action>
</common-actions>