InvalidBranchMergeProposal: Source and target branches must be different using the API

[Diogo Matsubara]

OOPS-13209939386b297b1fa0b91ffcc99bc5 logged an InvalidBranchMergeProposal: Source and target branches must be different.

   Traceback (most recent call last):
  Module zope.publisher.publish, line 134, in publish
    result = publication.callObject(request, obj)
  Module lazr.restful.publisher, line 211, in callObject
    WebServicePublicationMixin, self).callObject(request, object)
  Module canonical.launchpad.webapp.publication, line 499, in callObject
    return mapply(ob, request.getPositionalArguments(), request)
  Module zope.publisher.publish, line 109, in mapply
    return debug_call(obj, args)
   - __traceback_info__: <security proxied lazr.restful._resource.EntryResource instance at 0x15107b90>
  Module zope.publisher.publish, line 115, in debug_call
    return obj(*args)
  Module lazr.restful._resource, line 925, in __call__
    result = self.do_POST()
  Module lazr.restful._resource, line 757, in do_POST
    return self.handleCustomPOST(operation_name)
  Module lazr.restful._resource, line 1396, in handleCustomPOST
    value = super(EntryResource, self).handleCustomPOST(operation_name)
  Module lazr.restful._resource, line 741, in handleCustomPOST
    return operation()
  Module lazr.restful._operation, line 83, in __call__
    response = self.call(**values)
  Module lazr.restful.declarations, line 1426, in call
    result = self._getMethod()(**params)
  Module lp.code.model.branch, line 504, in _createMergeProposal
    commit_message=commit_message, review_requests=review_requests)
  Module lp.code.model.branch, line 430, in addLandingTarget
    'Source and target branches must be different.')
InvalidBranchMergeProposal: Source and target branches must be different.

[Launchpad QA Bot (lpqabot)]

Fixed in stable r14751 <http://bazaar.launchpad.net/~launchpad-pqm/launchpad/stable/revision/14751>.