Sometimes username sometimes full name used as email sender
Checklist
- [OK] I verified that Kanboard is correctly installed
- [OK] I checked that the problem does not come from a plugin
- [OK] I checked that the problem is not already reported
Actual behaviour
Sometimes username sometimes full name in used as email sender for different users.
Expected behaviour
How or where can it be set that always one or the other is used for all users?
Steps to reproduce
Take different users and receive notification via task creation or update.
Screenshots

Logs
Configuration
- Kanboard version: 1.2.20 PHP version: 7.2.24-0ubuntu0.18.04.7 PHP SAPI: apache2handler HTTP Client: cURL OS version: Linux 4.15.0-137-generic Database driver: postgres Database version: 10.17 (Ubuntu 10.17-0ubuntu0.18.04.1) Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0
I tried to change in app/Helper: /?: $user['username']/; and app/Notification/MailNotification: $user['name'] /?: $user['username']/,
no success
Perhaps, you can tell us which email notifications doesn't have the correct sender?
Certainly! New comment, Assignee change, Task update, New attachment, Task closed, New position, mentioning, New subtask, Column change, ...