How to reproduce:

(From a clean install of Moodle 4.3 with a SMTP server working for testing):

1. Create a course with several users enrolled as students.
2. Create an assign with some restriction that no student will achieve (for example a future date).
3. Enter on assign's configuration, change description field, mark "Send content change notification" and save.

What happens: All enrolled users receive a notification.

What I expected: No student should receive any notification cause they have no access to the assign.

Option's help state "Only users who can access the activity or resource will receive the notification." but it doesn't work like that.