Remove font feature

Question

Is there command to remove font feature that are added by \setmainfont or \setfontfamily. I know \addfontfeature to add font features.

\documentclass[12pt]{book} 
\usepackage{fontspec}
\RequirePackage[bidi=basic,layout=contents.footnotes]{babel}
\babelprovide[import, main, mapdigits]{arabic}
\setmainfont[Script=Arabic,StylisticSet=2]{Amiri}
\begin{document}
    السماء، لقمان، {السماء، لقمان}
\end{document}

if StylisticSet 2 disabled Meem letter before Alef ـما will differ.

Answer 1

Perhaps the easiest way to do this is with RawFeature:

\documentclass[12pt]{book}
\usepackage{fontspec}
\RequirePackage[bidi=basic,layout=contents.footnotes]{babel}
\babelprovide[import,main,mapdigits]{arabic}
\setmainfont[Script=Arabic,StylisticSet=2]{Amiri}
\begin{document}
السماء، لقمان، {\addfontfeature{RawFeature={-ss02}}السماء، لقمان}
\end{document}