xfrac reverses numerator and denominator in align environment with babel

[ShaiAvr]

There seems to be a bug with xfrac when using it in an align environment while using babel and an RTL language. The numerator and denominator are reversed in this case. I write my homework in Hebrew and this simple snippet shows the bug:

\documentclass{article}

\usepackage[amsthm, libertine, varbb]{newtxmath}

\PassOptionsToPackage{no-math}{fontspec}
\usepackage[bidi=basic, layout=tabular, headfoot=hebrew]{babel}

\babelprovide[main, import, alph=letters, Alph=letters]{hebrew}
\babelprovide[import]{english}

\usepackage{amsmath}
\usepackage{xfrac}

\begin{document}
\begin{align*}
\sfrac{x}{y}
\end{align*}
\[ \sfrac{x}{y} \]
\end{document}

Here's the result (Using LuaLatex):

Commenting out the babel setup gives the desired result. I tried to ask this on tex.stackexchange.com and it seems this issue is something that needs to be fixed with the xfrac package.