Patterns in a plain group fail validation

[ryelle]

In moving over the new block patterns, I've noticed that patterns wrapped in a group, with no other customization to the group, are considered invalid. Specifically, I get this response:

Updating failed. Pattern content contains only empty blocks.

But if I add more content below the group, or ungroup the blocks, it passes. Grouped blocks are valid, so this should be fixed in the validator.

Test block code:

<!-- wp:group -->
<div class="wp-block-group"><div class="wp-block-group__inner-container"><!-- wp:separator {"className":"is-style-default"} -->
<hr class="wp-block-separator is-style-default"/>
<!-- /wp:separator -->

<!-- wp:image {"align":"center","id":null,"width":150,"height":150,"sizeSlug":"large","linkDestination":"none","className":"is-style-rounded"} -->
<div class="wp-block-image is-style-rounded"><figure class="aligncenter size-large is-resized"><img src="https://s.w.org/images/core/5.8/portrait.jpg" alt="A side profile of a woman in a russet-colored turtleneck and white bag. She looks up with her eyes closed." width="150" height="150"/></figure></div>
<!-- /wp:image -->

<!-- wp:quote {"align":"center","className":"is-style-large"} -->
<blockquote class="wp-block-quote has-text-align-center is-style-large"><p>"Contributing makes me feel like I'm being useful to the planet."</p><cite>— Anna Wong, <em>Volunteer</em></cite></blockquote>
<!-- /wp:quote -->

<!-- wp:separator {"className":"is-style-default"} -->
<hr class="wp-block-separator is-style-default"/>
<!-- /wp:separator --></div></div>
<!-- /wp:group -->

[ryelle]

Looks like columns have the same issue:

Block code

<!-- wp:columns -->
<div class="wp-block-columns"><!-- wp:column -->
<div class="wp-block-column"><!-- wp:spacer -->
<div style="height:100px" aria-hidden="true" class="wp-block-spacer"></div>
<!-- /wp:spacer -->

<!-- wp:paragraph {"style":{"typography":{"fontSize":"21px"},"color":{"text":"#000000"}}} -->
<p class="has-text-color" style="color:#000000;font-size:21px"><strong>We have worked with:</strong></p>
<!-- /wp:paragraph -->

<!-- wp:paragraph {"style":{"typography":{"fontSize":"24px","lineHeight":"1.2"}}} -->
<p style="font-size:24px;line-height:1.2"><a href="https://wordpress.org">EARTHFUND™<br>ARCHWEEKLY<br>FUTURE ROADS<br>BUILDING NY</a></p>
<!-- /wp:paragraph -->

<!-- wp:spacer -->
<div style="height:100px" aria-hidden="true" class="wp-block-spacer"></div>
<!-- /wp:spacer --></div>
<!-- /wp:column -->

<!-- wp:column -->
<div class="wp-block-column"><!-- wp:spacer {"height":160} -->
<div style="height:160px" aria-hidden="true" class="wp-block-spacer"></div>
<!-- /wp:spacer -->

<!-- wp:paragraph {"style":{"typography":{"fontSize":"24px","lineHeight":"1.2"}}} -->
<p style="font-size:24px;line-height:1.2"><a href="https://wordpress.org">DUBAI ROOFS<br>MAY WATSON STUDIO<br>Y.O.L<br>RUDIMENTAR</a></p>
<!-- /wp:paragraph -->

<!-- wp:spacer -->
<div style="height:100px" aria-hidden="true" class="wp-block-spacer"></div>
<!-- /wp:spacer --></div>
<!-- /wp:column --></div>
<!-- /wp:columns -->

<!-- wp:paragraph -->
<p></p>
<!-- /wp:paragraph -->