Reversed numbering parentheses for alignat env in RTL context (lualatex)

[seloumi]

With this example of alignat environement parentheses of numbering are reversed, on the contrary parentheses in align environment are fine

\documentclass{article}
\usepackage{amsmath,amsthm}
\usepackage[bidi=basic]{babel}
\babelprovide[import, main]{arabic}
\babelfont{rm}{Amiri}

\begin{document}

\begin{alignat}{2}
& u=\arctan{x}       &\qquad& v=x\\
& du=\frac{1}{1+x^2} &&       dv=1
\end{alignat}

\begin{align}
 u&=\arctan{x}   \\
 du&=\frac{1}{1+x^2} 
\end{align}

\end{document}