These unit tests don't all need to save an edition to the database.
These unit tests don't all need to save an edition to the database.

This saves us a few tenths of seconds when running the tests, but every
little helps.

hotvulcan/whitehall,ggoral/whitehall,robinwhittleton/whitehall,hotvulcan/whitehall,robinwhittleton/whitehall,alphagov/whitehall,alphagov/whitehall,ggoral/whitehall,hotvulcan/whitehall,YOTOV-LIMITED/whitehall,robinwhittleton/whitehall,askl56/whitehall,ggoral/whitehall,alphagov/whitehall,YOTOV-LIMITED/whitehall,alphagov/whitehall,robinwhittleton/whitehall,YOTOV-LIMITED/whitehall,askl56/whitehall,askl56/whitehall,hotvulcan/whitehall,askl56/whitehall,YOTOV-LIMITED/whitehall,ggoral/whitehall