Greetings,

Setting the option:

$conf['quick_search_include_sub_albums'] = true;

and following the instructions in [Github] Piwigo file include/config_default.inc.php@L1001  to delete the cache in _data/cache/ does not work.
Quick searching for an album does not display sub-albums as described.

I have also attempted to purge the search history and user cache from the Maintenance tab as a troubleshooting step, but to no avail.

Environment

    Piwigo 15.3.0
    Installed on 2 February 2025, 5 hours ago
    Operating system: Linux
    PHP: 8.3.6
    MySQL: 8.0.41-0ubuntu0.24.04.1
    Graphics Library: GD 2.3.3
    Cache size 4.52 MB

Activated plugin list 9

    Admin Tools
    GThumb+
    LocalFiles Editor
    Login prompt
    RV autocomplete
    Tag Groups
    User Collections
    User Tags
    VideoJS