How have courts dealt with the error in allowing a defendant to exclude evidence that he had a prior conviction for assault?

Assuming for the sake of argument that the defendant did not forfeit the error by failing to raise it at trial (People v. Jones (2013) 57 Cal.4th 899, 951-952 ["defendant never moved to exclude the evidence under that section and has thus forfeited the claim for appeal"]), the error was harmless. Defendant contends that his defensethat he intended to return the car and thus lacked the requisite specific intentwas "plausible" and might have been accepted by the jury had it not known of his prior conviction.

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