My hon. Friend makes an incredibly clever point. The waters are muddy, because the Secretary of State for Scotland has not been clear about what will actually be devolved. He keeps saying that more things will be devolved, but he has been utterly unclear about whether agriculture and fishing will be devolved. The Chair will be in an even worse position when making decisions about the great repeal Bill due to the mud in the water.
My hon. Friend the Member for Perth and North Perthshire and the shadow Leader of the House said that this is a matter of principle. I get that. I am against EVEL and do not think it should have been implemented in this way. We should not have a constitutional convention; we should have independence. If the Labour party is so concerned about voting against the Government on matters of principle, I suggest that the one to have started with would have been the article 50 Brexit vote.