When the dispute involves a custodian’s application of an exemption to a public record or part of a public record, the Ombudsman may request the custodian to submit the disputed public record or part of a public record to the Ombudsman for review. A custodian may not be compelled to disclose to the Ombudsman a public record or part of a public record in the custodian’s custody. A custodian’s voluntary submission of a public record or part of a public record for review under this chapter may not be construed as a waiver of: Any privilege held by the custodian; or Any assertion of confidentiality under the Act.