This summary is not the rule. The rule text controls.
If a court file about property ownership gets lost or destroyed, it stops being "official notice" to the public after a while. Normally, court records about real estate are supposed to warn potential buyers about legal claims or issues tied to that property. But if the file is lost or destroyed, this warning effect only continues if someone files a request to restore the record within one year.
If nobody asks to restore the lost file within that one year window, the record no longer counts as public notice. This matters for buyers who purchase property in good faith. If they check the records and find nothing (because the file was lost and never restored in time), they won't be legally bound by whatever that missing file used to say.
In short, this rule protects buyers who can't find information because a court record disappeared. It also gives people a deadline, one year, to fix lost property records if they want those records to still count as legal notice to the public.