Warning when course session is created beyond course archive date

[jonatanschroeder]

Recently our term was extended due to a strike. I created new sessions for the new exams in the extended time, but failed to update the archive date of the course, leading to confusion to students that saw it today (the day after the original archive date). Would it be possible to include some warning in course sessions, either when creating or when viewing sessions/reservations, if the session starts after the course archival date?