Can an amendment to a tortfeasor's law cure a defect in the law and, if so, can it cure the defect with an amendment?

could cure the defect with an amendment. [Citation.] If we find that an amendment could cure the defect, we conclude that the trial court abused its discretion and we reverse; if not, no abuse of discretion has occurred. [Citation.] The plaintiff has the burden of proving that an amendment would cure the defect." (Schifando v. City of Los Angeles (2003) 31 Cal.4th 1074, 1081 (Schifando).)