"is_expanded" is set to true even if "below" is an empty array

Also appears to have existing test failures.

This has test coverage added now. They were failing because they were actually written with the bug we are seeing present. There are 2 of the 19 different test cases in the data provider that included nested (below) items that are filtered out by the build process. But the twig variable was still indicating there were items.

Sorry should of mentioned in my previous comment, can proposed solution be filled in. Does this have any UI impact?

smustgrave → credited mayurjadhav → .

smustgrave → credited Vj → .

Closed #2743641: MenuLinkTree.php insufficiently tests if a menu item is_expanded → as a duplicate.

Added duplicate in the related issues. Th