[Buildbot] #3071: /builds/:id/changes returns error

[Buildbot trac]

#3071: /builds/:id/changes returns error
-------------------+--------------------
Reporter:  Ben     |       Owner:
    Type:  defect  |      Status:  new
Priority:  major   |   Milestone:  0.9.0
 Version:  master  |  Resolution:
Keywords:  data    |
-------------------+--------------------

Comment (by Ben):

 Example of fromChanges and toChanges that breaks it:

 {{{
 fromChanges:
 {u'openvas-libraries': None, u'openvas-scanner': {'category': None,
 'files': [u'ChangeLog', u'src/openvassd.c'], 'parent_changeids': [287],
 'repository': u'https://wald.intevation.org/svn/openvas', 'author':
 u'jan', 'project': u'OpenVAS', 'comments': u'* src/openvassd.c (main):
 Updated/improved version info.\n\n', 'changeid': 422, 'codebase': u
 'openvas-scanner', 'branch': u'trunk', 'when_timestamp':
 datetime.datetime(2014, 12, 8, 11, 21, 25, tzinfo=tzutc()), 'revlink':
 u'', 'properties': {}, 'sourcestampid': 461, 'revision': u'21126'}}

 toChanges:
 {u'openvas-libraries': {'category': None, 'files': [u'ChangeLog',
 u'misc/plugutils.c'], 'parent_changeids': [], 'repository':
 u'https://wald.intevation.org/svn/openvas', 'author': u'mime', 'project':
 u'OpenVAS', 'comments': u'Added newline to output.', 'changeid': 85,
 'codebase': u'openvas-libraries', 'branch': u'trunk', 'when_timestamp':
 datetime.datetime(2014, 10, 28, 11, 57, 50, tzinfo=tzutc()), 'revlink':
 u'', 'properties': {}, 'sourcestampid': 105, 'revision': u'20710'}, u
 'openvas-scanner': None}
 }}}

 As I understand it, the `from` build was generated with a different
 codebase as the `to` build.

--
Ticket URL: <http://trac.buildbot.net/ticket/3071#comment:7>
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