[Buildbot] #3208: setupShellMixin throws exception about dictionary changed size for unknown argument

[Buildbot trac]

#3208: setupShellMixin throws exception about dictionary changed size for unknown
argument
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Reporter:  vlovich  |       Owner:
    Type:  defect   |      Status:  new
Priority:  major    |   Milestone:  undecided
 Version:  0.8.10   |  Resolution:
Keywords:           |
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Comment (by tardyp):

 actually fixed in
 https://github.com/buildbot/buildbot/commit/508fe5c38e655dbf7a7f5c88d53fa4a330e65b40

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Ticket URL: <http://trac.buildbot.net/ticket/3208#comment:3>
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