[Merge] ~andrew.sh/unity:fix-auth-failure-lp1733557 into unity:master

[Andrea Azzarone]

I proposed a fix here: https://code.launchpad.net/~azzar1/unity/+git/unity/+merge/363124

Do you mind testing it?
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https://code.launchpad.net/~andrew.sh/unity/+git/unity/+merge/362414
Your team Unity Team is requested to review the proposed merge of ~andrew.sh/unity:fix-auth-failure-lp1733557 into unity:master.