[Buildbot] #2155: Change git submodule handling in incremental builds

[Buildbot trac]

#2155: Change git submodule handling in incremental builds
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Reporter:  Tobi         |       Owner:
    Type:  enhancement  |      Status:  new
Priority:  major        |   Milestone:  0.9.+
 Version:  master       |  Resolution:
Keywords:  git, sprint  |
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Comment (by krf):

 Pull request at: https://github.com/buildbot/buildbot/pull/1618

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Ticket URL: <http://trac.buildbot.net/ticket/2155#comment:6>
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