Two buttons pattern block validation error

[Mamaduka]

Describe the bug
The "Two buttons" pattern triggers a validation error with 5.8 RC1. It looks like the pattern is using old markup - WordPress/gutenberg#21923.

To Reproduce
Steps to reproduce the behavior:

1. Update to WP 5.8 RC1
2. Create or edit a post.
3. See validation errors in the console.

Expected behavior
Core patterns shouldn't trigger validation errors.

Screenshots

[jasmussen]

I'm also seeing this one causing a consistent test failure in this unrelated PR: WordPress/gutenberg#33062

[kjellr]

@ryelle as per WordPress/gutenberg#28800, this one is getting pulled in via the API now, right?

I double checked the markup and it's not throwing any errors in the editor itself. I even fully re-created it to be sure. 🤷‍♂️ I did notice that it's marked as "unlisted" here in the pattern directory, and I'm not sure why that is.

[Mamaduka]

@kjellr I think that's a temp solution to avoid failing e2e tests see - https://wordpress.slack.com/archives/C02QB2JS7/p1625051015138400?thread_ts=1625031663.134000&cid=C02QB2JS7.

Also, @ntsekouras might have updated the pattern.

[ntsekouras]

@kjellr I think that's a temp solution to avoid failing e2e tests see -

Exactly. For now this is why it stopped failing. I'm back and forth with different kind of failures today and haven't pinpointed the root cause for this 😄

[ntsekouras]

This issue can be closed now that the PR was merged. I just realized it was an issue for the directory and not GB 😄