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

[Andrea Azzarone]

> How about:
> 
> - merging this fix as is and get it into packages asap to make the lockscreen
> work properly for the users
> - rewrite it in the proper way while the hacky fix is making lives easier :)
> 
> I’m willing to look into the proper fix myself, but I’d like to unbreak this
> sooner rather than later.

That would make more sense if unity was default in Disco. The main target for this fix is Xenial, that means that we need to SRU a fix and it usually requires a couple of weeks. I would prefer to SRU the fix is one single iteration.
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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.