[Bug] Wrong/No Email Notifications sent

[EspritOrgue]

Bug Report

Current Behavior
My users are reporting an issue where they receive email notifications from tags they are not following and none from the one they follow !
After some testing, the email were sent by "FOF Subscribed".

When disabled, the users weren't receiving anything !

Expected Behavior
Users should get notifications from tags they follow.

Screenshots

Environment

• Flarum version: 1.8.5
• Extension version: 1.2.2
• Website URL: https://www.swisslib.org
• Webserver: Apache
• Hosting environment: VPS
• PHP version: 8.1.27
• Browser: Firefox 123.0.1 (Lots of my users are on Chrome, I don't know the version tho !)

Flarum core: 1.8.5
PHP version: 8.1.27
MySQL version: 10.5.23-MariaDB-0+deb11u1
Loaded extensions: Core, date, libxml, openssl, pcre, zlib, filter, hash, json, pcntl, Reflection, SPL, session, standard, sodium, mysqlnd, PDO, xml, calendar, ctype, curl, dom, mbstring, FFI, fileinfo, ftp, gd, gettext, iconv, exif, mysqli, pdo_mysql, Phar, posix, readline, shmop, SimpleXML, sockets, sysvmsg, sysvsem, sysvshm, tokenizer, xmlreader, xmlwriter, xsl, zip, Zend OPcache
+--------------------------------------+----------+--------+
| Flarum Extensions                    |          |        |
+--------------------------------------+----------+--------+
| ID                                   | Version  | Commit |
+--------------------------------------+----------+--------+
| flarum-flags                         | v1.8.0   |        |
| flarum-approval                      | v1.8.1   |        |
| flarum-suspend                       | v1.8.1   |        |
| flarum-subscriptions                 | v1.8.0   |        |
| flarum-tags                          | v1.8.0   |        |
| flarum-sticky                        | v1.8.0   |        |
| fof-user-directory                   | 1.3.3    |        |
| fof-follow-tags                      | 1.2.2    |        |
| flarum-markdown                      | v1.8.0   |        |
| zerosonesfun-composer-preview        | 1.3      |        |
| v17development-seo                   | v1.8.1   |        |
| tohsakarat-tags-filter               | v1.0.5   |        |
| the-turk-stickiest                   | 3.0.1    |        |
| ramesh-dada-download-button          | v8.1.4   |        |
| ianm-log-viewer                      | 0.1.1    |        |
| ianm-follow-users                    | 1.4.6    |        |
| fof-upload                           | 1.5.4    |        |
| fof-terms                            | 1.3.0    |        |
| fof-subscribed                       | 1.1.4    |        |
| fof-sitemap                          | 2.2.1    |        |
| fof-nightmode                        | 1.5.3    |        |
| fof-masquerade                       | 2.1.4    |        |
| fof-linguist                         | 1.1.2    |        |
| fof-impersonate                      | 1.1.1    |        |
| fof-disposable-emails                | 1.0.0    |        |
| fof-default-user-preferences         | 1.2.1    |        |
| fof-bbcode-details                   | 1.1.2    |        |
| fof-ban-ips                          | 1.1.1    |        |
| fof-analytics                        | 1.1.0    |        |
| flarum-statistics                    | v1.8.0   |        |
| flarum-lock                          | v1.8.0   |        |
| flarum-lang-italian                  | 1.11.0   |        |
| flarum-lang-german                   | 1.9.0    |        |
| flarum-lang-french                   | v4.22.0  |        |
| flarum-lang-english                  | v1.8.0   |        |
| flarum-bbcode                        | v1.8.0   |        |
| flamarkt-signup-page                 | dev-main |        |
| datlechin-landing-page               | 0.1.0    |        |
| clarkwinkelmann-discussion-bookmarks | 2.0.1    |        |
| blomstra-database-queue              | 1.1.0    |        |
| askvortsov-rich-text                 | v2.1.7   |        |
+--------------------------------------+----------+--------+
Base URL: https://www.swisslib.org
Installation path: /var/www/html/flarum
Queue driver: database
Session driver: file
Scheduler status: Actif
Mail driver: smtp
Debug mode: off

Additional Context
The forum is huge with 3274 members and I use the "Database Queue" extension for processing the emails.