Custom pages blueprints

Hello, encountered a new issue (small) today.

Latest versions on testing channel, fresh install.
Old page system (not the flex one)

When adding custom pages templates into user/blueprints/pages, pages can behave with this blueprint, but blueprint is not visible when saving (so it goes back to default). Also, blueprints are not visible in "add" modal.

Currently patched it by adding `$types->scanBlueprints($path)` with a custom blueprint path. It also works when blueprints are directly inside theme.

Thanks a lot,
Alexis