Shift and right-click doesn't prevent mouse event from being delivered to terminal application

I think the ideal behaviour here would be the same as in gnome-terminal:

• Shift and left-click allows for selection of text, without the mouse events being passed to the underlying application.
  • This works fine in xfce4-terminal, just as it does in gnome-terminal
• Shift and right-click opens the context menu, without the right click being passed through to the underlying terminal application
  • This is how it works in gnome-terminal, but it doesn't work in xfce4-terminal. The context menu is displayed, but the terminal application also receives the click event. This is fairly easily observed in vim with mouse enabled.

I'm not entirely sure if this is a bug (as it's intended to work in the way I describe), a feature request, or if I'm missing an alternate key combination.

Behaviour observed on xfce4-terminal 1.0.4 on Arch Linux.