\bm{...} glyphs printed twice with weird offset (bm package)

[baloe]

\documentclass[cdmath=off]{tudscrartcl}
\usepackage{bm}
\begin{document}
$\bm{a}$
\end{document}

produces incorrect output

\documentclass{scrarticle}
\usepackage{bm}
\begin{document}
$\bm{a}$
\end{document}

produces correct output

Version v2.06j

[mrpiggi]

I'm working on it, but I don't have much time at the moment. I hope to have it done by the end of next week.

[mrpiggi]

Port from old forum, just check again

\documentclass[USenglish]{tudscrreprt}

\usepackage{babel}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{bm}

\begin{document}

Normale Formel
\begin{equation}
v^\top S_W v = \lambda
\end{equation}

Verwendung von mathbf
\begin{equation}
\mathbf{v}^\top \mathbf{S}_W \mathbf{v} = \mathbf{\lambda}
\end{equation}

Verwendung von bm
\begin{equation}
\bm{v}^\top \bm{S}_W \bm{v} = \bm{\lambda}
\end{equation}

\end{document}