Changing the ticket type fails when ticket status does not exist

[eelke.strooisma@…]

Changing the ticket type gives the error below when the new ticket type does not have the ticket status of the old ticket type.

Trac detected an internal error: KeyError: '_reset'

Most recent call last:

    File "/usr/lib/python2.7/dist-packages/trac/web/main.py", line 450, in _dispatch_request
    File "/usr/lib/python2.7/dist-packages/trac/web/main.py", line 206, in dispatch
    File "/usr/lib/python2.7/dist-packages/trac/ticket/web_ui.py", line 182, in process_request
    File "/usr/lib/python2.7/dist-packages/trac/ticket/web_ui.py", line 536, in _process_ticket_request
    File "/usr/lib/python2.7/dist-packages/trac/ticket/web_ui.py", line 1264, in _insert_ticket_data
    File "build/bdist.linux-x86_64/egg/MultipleWorkflowPlugin/MultipleWorkflowPlugin.py", line 200, in render_ticket_action_control 

[Cinc-th]

I can confirm the bug with 0.12.3:

13:26:41 Trac[main] ERROR: Internal Server Error: 
Traceback (most recent call last):
  File "/Users/cinc/projects/ReqVirtualEnv/lib/python2.7/site-packages/trac/web/main.py", line 522, in _dispatch_request
    dispatcher.dispatch(req)
  File "/Users/cinc/projects/ReqVirtualEnv/lib/python2.7/site-packages/trac/web/main.py", line 243, in dispatch
    resp = chosen_handler.process_request(req)
  File "/Users/cinc/projects/ReqVirtualEnv/lib/python2.7/site-packages/trac/ticket/web_ui.py", line 169, in process_request
    return self._process_ticket_request(req)
  File "/Users/cinc/projects/ReqVirtualEnv/lib/python2.7/site-packages/trac/ticket/web_ui.py", line 569, in _process_ticket_request
    get_reporter_id(req, 'author'), field_changes)
  File "/Users/cinc/projects/ReqVirtualEnv/lib/python2.7/site-packages/trac/ticket/web_ui.py", line 1518, in _insert_ticket_data
    req, ticket, action)
  File "build/bdist.macosx-10.8-intel/egg/multipleworkflow/workflow.py", line 211, in render_ticket_action_control
    this_action = self.actions[action]
KeyError: '_reset'

Old ticket type:

Testfall with current status approved

New ticket type:

defect which doesn't have a status approved

Configuration in trac.ini:

[ticket-workflow]
accept = new,assigned,accepted,reopened -> accepted
accept.operations = set_owner_to_self
accept.permissions = TICKET_MODIFY
leave = * -> *
leave.default = 1
leave.operations = leave_status
reassign = new,assigned,accepted,reopened -> assigned
reassign.operations = set_owner
reassign.permissions = TICKET_MODIFY
reopen = closed -> reopened
reopen.operations = del_resolution
reopen.permissions = TICKET_CREATE
resolve = new,assigned,accepted,reopened -> closed
resolve.operations = set_resolution
resolve.permissions = TICKET_MODIFY

[ticket-workflow-Testfall]
leave = * -> *
leave.default = 1
leave.operations = leave_status

approve = new, reopened -> approved
approve.operations = del_resolution
approve.permissions = TICKET_MODIFY

reopen_verified = closed -> reopened
reopen_verified.name= reopen
reopen_verified.operations = set_resolution
reopen_verified.set_resolution=from verified
reopen_verified.permissions = TICKET_CREATE

reopen_approved = approved -> reopened
reopen_approved.name = Reopen
reopen_approved.operations = set_resolution
reopen_approved.set_resolution=from approved
reopen_approved.permissions = TICKET_CREATE

remove = new, reopened, approved, closed -> removed
remove.operations = set_resolution
remove.set_resolution= removed
remove.permissions = TICKET_MODIFY

verify = approved -> closed
verify.name=Check the Test case and mark
verify.operations = set_resolution
verify.set_resolution=verified
verify.permissions = TICKET_MODIFY

[Cinc-th]

[14566]: Offer a ticket action to reset the status when ticket has an invalid status after a type change.

An invalid status is any status which is not defined in the active workflow.