# Quotes don't work with polyglossia?

I have an older file using  and '' which would then be formatted as proper quotes. I was now wanting to use polyglossia for that file and find that while these quotes still work in the footnotes, they don't do so anymore in the running text:

\documentclass{article}
\usepackage{polyglossia}
\setdefaultlanguage{english}
\setotherlanguage{sanskrit}
\setotherlanguage{german}
\newfontfamily\sanskritfont{Latin Modern Roman}
\newfontfamily\englishfont{Latin Modern Roman}
\begin{document}
Test''\footnote{Test''}
\end{document}

Was I just using some ancient crutch one should not be using anymore nowadays?

• Please tell us which TeX distribution and which version of either XeLaTeX or LuaLaTeX you use. – Mico Nov 15 '16 at 15:03
• @Mico XeTeX 3.14159265-2.6-0.99996 (TeX Live 2016) – muk.li Nov 15 '16 at 15:05

Test''\footnote{Test''}