There are still nearly two years to go until the state next goes to the polls, but yesterday might well go down as the day Annastacia Palaszczuk's Labor government won itself the next Queensland election.

This was not achieved Paul Keating-style, with a searingly effective demolition of a showpiece opposition policy, or as John Howard might have done, by using unanticipated external events to wrest back an initiative that had long seemed lost, but through a dramatic and entirely unheralded change to the electoral system.