Legal analysis: If the first confession is unclear or wrong, you can make a different confession in subsequent transcripts. But the reversal of confession you are talking about refers to deliberately making a different confession. This behavior is not allowed by the Criminal Procedure Law and is also detrimental to the correct identification and accurate sentencing of sexual crimes.
Legal basis: Article 55 of the "Criminal Procedure Law of the People's Republic of China and the State": When investigating and verifying evidence in a case where a public prosecution is instituted in accordance with the law, the people's court finds that it is important to determine the facts of the case. If new evidentiary materials are used, the prosecutors and defenders shall be notified. If necessary, they may also be directly extracted, copied, and transferred to the prosecutors and defenders.