Issues in project id handling with old presentations without id

Open a legacy project with a (sub)presentation that has no id. There should be a warning icon next to project in project panel.

Enter subpresentation. Try to rename it via Edit -> Presentation settings. New id does not stick, nor is it saved to UIA file.

Renaming via project panel context menu works, but the warning icon about missing id is still shown in project panel, even when exiting subpres and going back to main presentation.