Description

When inserting blocks that rely on InnerBlocks templates, the inner content is not rendered upon insertion. But saving and refreshing triggers rendering and content is rendered properly.

Reproducible only in templates. Starter to occur after merging #67125.

Step-by-step reproduction instructions

1. Go to Editor > Templates and choose some templates
2. Insert Query Loop block
3. Choose Start blank and some design

Expected:
All content is rendered (including Pagination and No Results)

Actual:
Pagination and No Results is missing

4. Save and refresh Editor
5. Content is rendered

Can be also reproduced on Terms Query block but it's experimental (in admin Gutenberg > Experiments > tick Enables experimental blocks on a rolling basis as they are developed.)

Screenshots, screen recording, code snippet

Example on three blocks using InnerBlocks:

• Product Gallery (from WooCommerce)
• Query Loop
• Terms Query

First insert	After refresh

Environment info

• WP 6.8
• Gutenberg trunk
• I could also reproduce when testing Allow template duplication + concept of active templates #67125

Please confirm that you have searched existing issues in the repo.

• Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

• Yes

Please confirm which theme type you used for testing.

• Block
• Classic
• Hybrid (e.g. classic with theme.json)
• Not sure