See Full Constitution
Article XIV

Section 1. Effect of change from territory to state

That no inconvenience may arise by reason of a change from a territorial to a permanent state government, it is declared that all rights, actions, prosecutions, judgments, claims and contracts, as well of individuals as of bodies corporate, shall continue as if no such change had taken place; and all process which may be issued under the authority of the territory of Wisconsin previous to its admission into the union of the United States shall be as valid as if issued in the name of the state.