They don't know either, so their official line is that you can't, but they'll let you anyway because they're nice. In reality they're just scared of a binding decision saying you can, particularly as they know the political will to change the law back to what everyone thought it was will be zero...
They don't know either, so their official line is that you can't, but they'll let you anyway because they're nice. In reality they're just scared of a binding decision saying you can, particularly as they know the political will to change the law back to what everyone thought it was will be zero...