1. Go to "Ibexa Digital Experience Platform" in the backoffice.
2. Bookmark it.
3. Refresh page and investigate response of load-subtree request.
4. Open the contextual menu for "Ibexa Digital Experience Platform" in the content tree.

Expected result:

1. In the request response, isBookmarked is true for "Ibexa Digital Experience Platform".
2. The contextual menu offers "Remove from bookmarks" option.

Actual result:

1. In the request response, isBookmarked is false for "Ibexa Digital Experience Platform".
2. The contextual menu offers "Add to bookmarks" option.

Technical background:

\Ibexa\AdminUi\UI\Module\ContentTree\NodeFactory::buildNode() is always called with an empty array for $bookmarkLocations. (Original changes: https://github.com/ibexa/admin-ui/commit/f97888f331d7e897acea66d550fbd0d653d69418)