For a Context Menu #543 it is natural to use the second mouse button to open it by a click. Currently, when this happens on a draggable element, the right click is registered as a drag (same for left clicks). This is a problem for this feature, because context menus can't be opened on draggable elements.

In general, I think it is more common to use the left mouse button for initiating drags, anyways, not the right mouse button. Maybe the right mouse button should not register drags at all, by default?

In any case, #547 would still fix this, just wanted to put this up for discussion.