Fishy Tale?

[muninnhuginn]

From The wrap (from Guardian Online):

>>> MP AUSTIN FISHES FOR PUBLICITY

He may not have the re-branding flair of a Peter Mandelson, but Austin
Mitchell MP has carried out one of oddest political stunts of recent
times. The member for Great Grimsby has changed his name by deed poll
- to Austin Haddock. The aim is to support his constituency's
struggling fishing industry during a seafood promotion week. None of
his four children has adopted the name change. "I think dad's mad,"
Hannah Mitchell told the Times. "What will it be next seafood week?
Austin Mackerel? Austin Swordfish?"

Question is: does he change his name back after the week's up? Are there time limits?