Wis. Stat. § 75.46: Trial; defendant’s interest.

All issues of fact and of law joined in any such action shall be tried by the court unless the court shall otherwise direct or unless a party to an issue of fact in any such action shall demand a trial by jury, in which case such issues shall be tried by jury as other issues of fact; and on the trial of every such action every defendant shall be deemed to have a redeemable interest in all the lands described in the county’s complaint in respect to which any relief or judgment is sought against such defendant, unless it be otherwise alleged therein.