qcircuit does not play nicely with standalone

[1ucian0]

The issue seems related with https://sourceforge.net/p/standalone/tickets/1/

The following latex produced a cropped PDF:

\documentclass{standalone}

\usepackage[braket, qm]{qcircuit}

\begin{document}
    \Qcircuit @C=1.0em @R=0.2em @!R {
                \lstick{ {q}_{0} :  } & \gate{\mathrm{H}} & \ctrl{1} & \qw & \qw\\
                \lstick{ {q}_{1} :  } & \qw & \targ & \qw & \qw\\
         }
\end{document}

Notice that the $q_0$ and $q_1$ are fully cropped out. It seems a like a problem with bounding box setting. The data is there (see with \documentclass[border=20px]{standalone})