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-rw-r--r--zuul/merger/merger.py7
1 files changed, 7 insertions, 0 deletions
diff --git a/zuul/merger/merger.py b/zuul/merger/merger.py
index 94933dec5..0c9f168ad 100644
--- a/zuul/merger/merger.py
+++ b/zuul/merger/merger.py
@@ -182,6 +182,13 @@ class Repo(object):
repo = self.createRepoObject()
self.log.debug("Updating repository %s" % self.local_path)
origin = repo.remotes.origin
+ if repo.git.version_info[:2] < (1, 9):
+ # Before 1.9, 'git fetch --tags' did not include the
+ # behavior covered by 'git --fetch', so we run both
+ # commands in that case. Starting with 1.9, 'git fetch
+ # --tags' is all that is necessary. See
+ # https://github.com/git/git/blob/master/Documentation/RelNotes/1.9.0.txt#L18-L20
+ origin.fetch()
origin.fetch(tags=True)