allow empty tuple, fixes #13126

[KiaraGrouwstra]

Fixes #13126 / #13239.

[msftclas]

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[KiaraGrouwstra]

I apologize, it appears there was a similar effort at #14646. I suppose perhaps I could leave this for reference until either gets merged.

[zpdDG4gta8XKpMCd]

#14646 <#14646> looks abandoned

…

On Sun, Aug 13, 2017 at 5:14 AM, Tycho Grouwstra ***@***.***> wrote: I apologize, it appears there was a similar effort at #14646 <#14646>. I suppose perhaps I could leave this for reference until either gets merged. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#17762 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AA5PzflCfxTTgAa1_92ik4JHrZTYbo8yks5sXr5vgaJpZM4O1okH> .

-- Aleksey Bykov

[KiaraGrouwstra]

@Aleksey-Bykov: Thanks. I've incorporated their progress to get this back on track.

[KiaraGrouwstra]

#14646 seems back on track, so closing in favor of that.