Lib Dems: Sleep Walking to Control in Wareham Town?

Lib Dem Voice report a Council changing hands in very unusual circumstances. By two, count 'em, walkovers in by-elections for Wareham Town Council. Has a council ever changed hands before by walkover?

UPDATE: This was a Tory held seat, and an Independent (Tory-ish) seat. Tories did not put up candidates where they ought I suppose to have WON. Which makes his complaint about Labour not putting up whipping boys or girls to LOSE in the NW rather strange. MORE UPDATE: Iain's example is a weedy Parish Council.