[Buildbot] #3292: GitPoller can't get changed files on merge commit

[Buildbot trac]

#3292: GitPoller can't get changed files on merge commit
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Reporter:  boolking   |       Owner:
    Type:  undecided  |      Status:  new
Priority:  major      |   Milestone:  undecided
 Version:  0.8.12     |  Resolution:
Keywords:             |
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Comment (by yhager):

 I'm also seeing this, so voting for this patch. The patch above is missing
 a dash, so I fixed it and created a pull request from it:
 https://github.com/buildbot/buildbot/pull/2001.

 This is especially important if you use gitpoller together with
 `fileIsImportant` and `onlyImportant`. Since a merge commit won't have
 files without this patch, it will be deemed unimportant, and missed -
 causing an older version to be built.

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Ticket URL: <http://trac.buildbot.net/ticket/3292#comment:2>
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