In eZ Platform 2.5 with Legacy bridge hiding content will not update Solr index.

Steps to reproduce
1. Clean installation of eZ Platform 2.5 + Legacy bridge with Solr as a search engine.
2. Log in to the legacy Backoffice as administrator.
2. Create a new folder Folder A.
3. In Folder A create second folder Folder B.
4. Hide Folder A.
5. In Solr query run:

content_name_s:"Folder A"

Result
Solr will return (among others):

        "hidden_b":false,
        "invisible_b":false,

Expected Result

        "hidden_b":true,
        "invisible_b":true,

Note hiding parent folder Folder A will not update "invisible_b" to true for children (Folder B). Running php bin/console ezplatform:reindex will correctly update solr with made changes.