Broken MathJax Code Block Migration

When importing a Confluence XML export, LaTeX math blocks are only migrated correctly if the macro body already starts with

\begin{align}

and ends with

\end{align} 

Every other LaTeX block which is wrapped in

\begin{aligned} .... \end{aligned}

fails on render. The XWiki MathJax extension displays a yellow box containing the raw macro content instead of
the formula.

A broken migration looks like this:

\begin{aligned}
a &= b + c \\
d &= e + f
\end\{aligned}

A working migration looks like this:

\begin{align}
a &= b + c \\
d &= e + f
\end{align}