In a document with sidenotes and footnotes using reledmac, is there a way to expand footnotes into the margin so that the then-narrower footnote margin is the same as the part of the margin on the outside of sidenotes? Here is an illustration and a solution for footnotes outside of reledmac. I tried adapting that solution with \Xbhooknote and \Xbhookgroup (commented out below), which does not have the desired effect.
\documentclass[12pt]{article}
\usepackage[letterpaper, left=1in, right=2.2in, top=1in, bottom=1in]{geometry}
\usepackage{lipsum}
\usepackage{reledmac}
\Xarrangement[A]{paragraph}
\Xarrangement[B]{twocol}
\ledrsnotewidth = 1.5in
\rightnoteupfalse
%\Xbhooknote{\hsize\columnwidth\advance\hsize\marginparsep\advance\hsize\marginparwidth}
%\Xbhookgroup{\hsize\columnwidth\advance\hsize\marginparsep\advance\hsize\marginparwidth}
\begin{document}
\beginnumbering
\pstart
\edtext{Lorem}{
\Afootnote{\lipsum*[1]}
\Bfootnote{\lipsum*[1-2]}}
\ledsidenote{A side note long enough to wrap to the next line.}
\lipsum*[2-3]
\ledsidenote{Another side note.}