Pedant alert indeed, the Boundaries Commission is redrawing and redefining constituency boundaries on an ongoing basis, so much so that something like 10 constituencies have actually disappeared most of them labour seats too. Not that that will change the outcome of the upcoming bun feast, I am putting £10 on the Lib Dems to increase their seats by at least 50%. I do know about Gerry Mander but it has become a generic term, much like biro for a ball point pen, and Hoover for a vacuum cleaner.
Giok