referendum is unavoidable in the event of a Holyrood majority for the party.Ahead of the Prime Minister’s virtual appearance at the online Scottish Conservative conference this weekend, one idea floated by Downing Street is that MPs from the Commons could sit in Scotland for a fortnight every September.One problem, the SNP said, is that the Holyrood parliament will be fully occupied by MSPs during that time.Pete Wishart MP said the idea of touring the Commons was “laughable”.Wishart said: “Not