All Proceedings of the Guardians or of a Committee thereof, or of any Person acting as a Guardian, shall, notwithstanding it be afterwards discovered that there was some Defect in the Election of any such Guardian or Person so acting, or in the Appointment of any such Committee, or that they or any of them were disqualified, be as valid as if every such Person were duly elected and qualified to be a Guardian, and as if every such Committee were duly appointed.