From 01f1058d82ab67621733bf909be3f58566c201a2 Mon Sep 17 00:00:00 2001
From: Matthew Mulholland <matt@redboxresearchdata.com.au>
Date: Thu, 5 Jul 2018 15:29:37 +1000
Subject: [PATCH] Attempt to fix MacOSX build issue with workaround (from
 https://github.com/travis-ci/travis-ci/issues/8703)

---
 travis_script.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/travis_script.sh b/travis_script.sh
index 8ab424de2..e616eee44 100755
--- a/travis_script.sh
+++ b/travis_script.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 set -ev
+unset -f cd
+shell_session_update() { :; }
 if [ "${TRAVIS_BRANCH}" = "ci" ]; then
   yarn run unit
   yarn run unit:coverage