Description

Position "sticky" has two main usages in classic themes:
A) Header / Site-Menu
B) (Navigation) Widgets like Table of Content in Sidebars

The new sticky feature worked for both positions with Gutenberg 15.0.1
=> A) Grouping the Header
=> B) Columns: Content in first column, Group (= Widget) in second column (= sidebar)

But In Gutenberg 15.1.0 the "sticky" feature was only visible in root blocks => no longer "sticky" feature within columns (= sidebars)

Step-by-step reproduction instructions

1. site-editor: add 2 columns for content and sidebar
2. add group in "sidebar"
3. Try to add "sticky" feature to sidebar group

Screenshots, screen recording, code snippet

No response

Environment info

WP 6.1.1
Gutenberg 15.1.0

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