Description

While fixing #47828 we uncovered a new bug in the case where more than one navigation block is present on the page.

Step-by-step reproduction instructions

Insert a navigation block with custom links.
Click the inserter to add a new custom link, it should trigger the popover to edit the link.
Insert a new navigation block just below.
Insert a new custom link to it. The popover should open, but it doesn't.

Screenshots, screen recording, code snippet

Environment info

No response

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