IOS App Searching for Folders does not show the files in the folder

Steps to reproduce

1. Search for a folder
2. Open the folder I searched

Expected behaviour

The files in the folder should show.

Actual behaviour

The files don't show.
When I open the folder manually without the search, the files show.
After I opened the folder manually, the files also show when I search for the folder.
After restarting the app, I need to manually open the folder again.

Screenshots

Logs

If applicable, you can post the iOS app or server logs (removing any sensitive information).

Reasoning or why should it be changed/implemented?

Because I need to search for folders and don't know the name of every file.

Environment data

iOS version: e.g. iOS 14.4.1
16.0.3
Nextcloud iOS app version: see More > Settings

4.5.4.9

Server operating system:
debian 10

Web server: Apache, nginx
Apache
Database:
MySQL
PHP version:
PHP 7.3.31-1~deb10u1
Nextcloud version: see Nextcloud admin page
Nexcloud Hub II (23.0.8)

Start by reproducing the iOS app's folder-search flow: search for a folder, open it, restart the app, and repeat; compare this with manually opening the folder. Trace the search-to-folder-opening entry point, and consider the issue resolved when the folder's files appear immediately after opening it from search, including after an app restart.