[x] Scilly Isle wards are present for the first time, with new GSS codes. These need to be imported as COP to match the existing ones, and they will at last have boundaries (https://github.com/mysociety/mapit/issues/219 was never got around to).
[x] May 2017 incorrectly assigned W05001005 to Brynford instead of Halkyn. This meant Brynford got a new ID with the same boundary, and Halkyn's new boundary overwrote its old one.
[x] May 2017 incorrectly assigned S13003136 to Clydebank Central, instead of S13003126. Easier fix as nothing using the incorrect ID.
[x] Two wards were incorrectly named in May 2017, Uckfield North and St Leonard's Forest.
Is out: