The commit f44afbddf2 introduced a bug
when replacing Paris code with Doctrine code in lib/Tasks/State.php.
This bug was causing the system status page to display "Preview" instead
of the subject of the listed emails. The problem was happening because
during the refactor there was a mistake and we were trying to get a
SendingQueueEntity via its ID using the ScheduledTaskEntity ID. This
commit fixes this problem by getting a SendingQueueEntity that matches
the given ScheduledTaskEntity ID.
[MAILPOET-4508]
PHPStan reported an error in PHP8.1. When we use
the annotation ReturnTypeWillChange it caused another error
for PHPStan in combination in PHP7.2. The new annotations
are solving those issues.
[MAILPOET-4053]
