This decision holds that the trial court erred in granting one defendant summary judgment based on a statute of limitations defense. The argument and evidence on summary judgment addressed when plaintiff discovered the contracts signed by an independent contractor were void under This decision holds that the trial court erred in granting one defendant summary judgment based on a statute of limitations defense. The argument and evidence on summary judgment addressed when plaintiff discovered the contracts signed by an independent contractor were void under Gov. Code 1090, not when plaintiff discovered that the invalidity of those contracts was caused (as alleged in the complaint) by the defendant’s negligence in supervising its employee who negligently supervised the contractor., not when plaintiff discovered that the invalidity of those contracts was caused (as alleged in the complaint) by the defendant’s negligence in supervising its employee who negligently supervised the contractor.