Clone page via SmartEdit: Primary page identification does not work for custom page types

[jthiart]

When cloning a page in SmartEdit and setting up the clone as a primary page, default pages with the same label are flagged as deleted. These pages are identified via

CMSAdminPageService.getIdenticalPrimaryPageModel

However, this only works for the default hybris ContentPage. For any other page type, including types that extend from ContentPage, all active pages with the defaultPage flag count as identical primary pages, and the first randomly selected result is then flagged as deleted.

1) All pages extending from ContentPage but having a different label can be flagged as deleted. This seems like a bug to me.

2) Does this mechanism really make sense for all non-ContentPage types?

And how can this behaviour be prevented?