Is a defendant's sentence for a prior conviction of a serious felony reduced to a misdemeanor under section 17, subdivision (b)(3) of the California Criminal Code?

In People v. Park (2013) 56 Cal.4th 782 (Park), the defendant's sentence for his current crimes was enhanced by five years under section 667, subdivision (a), based on his prior conviction of a serious felony. Prior to the defendant's commission of his current crimes, however, the trial court reduced the prior offense to a misdemeanor under section 17, subdivision (b)(3), and then dismissed it pursuant to section 1203.4, subdivision (a)(1). (Park, supra, 56 Cal.4th at p. 787.)