What does the console output mean when using EventKitUI on Xcode 15.0 beta

I create a simple app to enable user add an agenda to their calendar. I create an EventEditViewController which can be used in my SwiftUI app. When I tap the save button appeared on the sheet, the agenda can be saved to calendar but comes with some Xcode console output:

redactedMimicSaveEvent: could not find corresponding remoteUI user committed permanent objectID for hostTempID[x-apple-eventkit:///Alarm/t6]. initialTempID[x-apple-eventkit:///Alarm/t5]

What does that mean?