Satti v. Rago
In Satti v. Rago, 186 Conn. 360, 369, 441 A.2d 615 (1982), the Supreme Court had described the admission of evidence of events subsequent to the Probate Court hearings in a less draconian fashion.
In that decision, the court held that "the error of admitting evidence of a party's current interest being irrelevant to the issue of past opportunity lost is, therefore, harmless." Id.
The Satti court treated the improper admission of such evidence as evidentiary error, not as jurisdictional error.