Merge "Avoid fatal when finding no base revision for a null revision."
authorjenkins-bot <jenkins-bot@gerrit.wikimedia.org>
Thu, 4 Oct 2018 18:11:58 +0000 (18:11 +0000)
committerGerrit Code Review <gerrit@wikimedia.org>
Thu, 4 Oct 2018 18:11:58 +0000 (18:11 +0000)

Trivial merge