association: bad alignment of labels for vertical line

[skobls]

Bug

if there are to classes, on below the other, and they are connected with an association, then the labels of the association are placed directly on the line

Desired behavior

the labels should appear at sides of the line and should not cross it.

Code that demonstrates the bug

\begin{tikzpicture}
\begin{class}{ComputedPath}{0,0}
\attribute{path : Path}
\attribute{price : Double}
\end{class}
\begin{class}{RemoteStorage}{0,-3}
\end{class}
\association{ComputedPath}{foo}{1}%
{RemoteStorage}{bar}{1}
\end{tikzpicture}

P.S.: thanks for developing the package!