Patterns: Explore options to enforce pattern name uniqueness

[aaronrobertshaw]

Pattern names should generally be unique. As we are leveraging the wp_block post type for patterns now, there currently isn't any uniqueness constraint.

See further discussion in #52270

Duplicate names seems like something to avoid generally. But I noticed you can reuse existing names when creating a pattern manually too, so perhaps it's something to address separately?

[annezazu]

Is this intended for inclusion in 6.3? I was going to add it to the 6.3 board but wasn't quite sure. Feel free to do so.

[aaronrobertshaw]

Thanks for the question @annezazu 👍

No, this is a future follow-up. My understanding is reusable blocks have long allowed duplicate names so we'll have some rough edges that need consideration if we're to impose this uniqueness constraint. Leaving things as they are now doesn't box us into a corner.

When I created this, I also put it under future follow-ups in the Patterns tracking issue.