Participant-links don't link to profile but /d/true

[wolfgang-demeter]

Bug Report

Current Behavior Links to the participants of a private discussion link to /d/true instead of /u/username.

Steps to Reproduce

1. Create a private discussion between users
2. Click on the link of either participant

Expected Behavior Link to the user profile /u/username.

Screenshots

Environment

• Flarum version: 1.0.3
• Extension version: 1.0.0-beta.7
• Website URL: --
• Webserver: nginx
• Hosting environment: VM
• PHP version: 7.4.3
• Browser: Firefox 89.0.2

Flarum core 1.0.3
PHP version: 7.4.3
Loaded extensions: Core, date, libxml, openssl, pcre, zlib, filter, hash, pcntl, Reflection, SPL, session, standard, sodium, mysqlnd, PDO, xml, bz2, calendar, ctype, curl, dom, mbstring, FFI, fileinfo, ftp, gd, gettext, iconv, imagick, json, 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              | v1.0.0       |        |
| flarum-suspend            | v1.0.0       |        |
| fof-formatting            | 1.0.0        |        |
| flarum-approval           | v1.0.0       |        |
| flarum-tags               | v1.0.3       |        |
| flarum-lang-german        | 1.1.0        |        |
| askvortsov-auto-moderator | v0.1.1       |        |
| fof-terms                 | 1.0.0        |        |
| fof-split                 | 1.0.0        |        |
| fof-socialprofile         | 1.0.0        |        |
| fof-links                 | 1.0.0        |        |
| flarum-nicknames          | v1.0.0       |        |
| flarum-bbcode             | v1.0.0       |        |
| flarum-lang-english       | v1.0.0       |        |
| flarum-likes              | v1.0.0       |        |
| flarum-lock               | v1.0.0       |        |
| flarum-markdown           | v1.0.1       |        |
| flarum-mentions           | v1.0.0       |        |
| flarum-statistics         | v1.0.0       |        |
| flarum-sticky             | v1.0.0       |        |
| flarum-subscriptions      | v1.0.0       |        |
| fof-upload                | 1.0.1        |        |
| fof-pages                 | 1.0.1        |        |
| fof-user-bio              | 1.0.0        |        |
| fof-merge-discussions     | 1.0.0        |        |
| fof-amazon-affiliation    | 1.0.0        |        |
| fof-byobu                 | 1.0.0-beta.7 |        |
+---------------------------+--------------+--------+

Possible solution(s)

Additional Context Add any other context about the problem here.