[Buildbot] #2918: GerritChangeSource breaks when submitter has no configured email address

[Buildbot trac]

#2918: GerritChangeSource breaks when submitter has no configured email address
---------------------+--------------------
Reporter:  waitzmar  |       Owner:
    Type:  defect    |      Status:  new
Priority:  major     |   Milestone:  0.9.0
 Version:  0.8.9     |  Resolution:
Keywords:  gerrit    |
---------------------+--------------------

Comment (by sa2ajj):

 PR: https://github.com/buildbot/buildbot/pull/1241

--
Ticket URL: <http://trac.buildbot.net/ticket/2918#comment:3>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation