NPE returned on tickets associated with unexisting workflow making them inaccessible

2011-01-27 15:59:49,274 http-8080-4 ERROR admin 959x264x1 1fzk33s 0:0:0:0:0:0:0:1 /browse/XOPS-7564 [webwork.dispatcher.ServletDispatcher] Could not execute action
java.lang.NullPointerException
	at com.atlassian.jira.permission.PermissionContextImpl.getRelevantStepDescriptor(PermissionContextImpl.java:83)
	at com.atlassian.jira.permission.WorkflowPermissionFactory.getWorkflowPermissions(WorkflowPermissionFactory.java:30)
	at com.atlassian.jira.security.WorkflowBasedPermissionManager.hasPermission(WorkflowBasedPermissionManager.java:75)
	at com.atlassian.jira.security.AbstractPermissionManager.hasPermission(AbstractPermissionManager.java:119)
	at sun.reflect.GeneratedMethodAccessor140.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.atlassian.util.profiling.object.ObjectProfiler.profiledInvoke(ObjectProfiler.java:70)
	at com.atlassian.jira.config.component.SwitchingInvocationHandler.invoke(SwitchingInvocationHandler.java:28)
	at $Proxy35.hasPermission(Unknown Source)
	at com.atlassian.jira.web.action.issue.AbstractIssueSelectAction.getIssue(AbstractIssueSelectAction.java:112)
	at com.atlassian.jira.web.action.issue.ViewIssue.doExecute(ViewIssue.java:180)
	at webwork.action.ActionSupport.execute(ActionSupport.java:165)
	at com.atlassian.jira.action.JiraActionSupport.execute(JiraActionSupport.java:54)
	at webwork.dispatcher.GenericDispatcher.executeAction(GenericDispatcher.java:139)
	at com.atlassian.jira.web.dispatcher.JiraServletDispatcher.service(JiraServletDispatcher.java:171)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
...

mysql> select * from OS_WFENTRY where ID=(select workflow_id from jiraissue where pkey='TP-1');
+-------+------+-------------+-------+
| ID    | NAME | INITIALIZED | STATE |
+-------+------+-------------+-------+
| 10000 | jira | 0           | 1     |
+-------+------+-------------+-------+