(bug): Users are not notified when their request to join a closed group has been accepted/rejected.

Summary

This is an important piece of information.

NOTE: Facebook notifies users when their request to join a group has been accepted but not when it has been rejected. I think they don't notify users when their request to join a group has been rejected because they don't want users to feel bad (likely for business reasons). I think they never implemented the dislike button for the same reason.

NOTE: Canary mode is turned on.

Steps to reproduce

  1. Make a group you own closed.
  2. Log out and log into a secondary account which is not a member of that group.
  3. Visit the group.
  4. Click "Join".
  5. Log out and log back into your primary account.
  6. Visit the group.
  7. Click "Members".
  8. Click "Requests".
  9. "Approve" or "Reject" the request from your secondary account.
  10. Log out and log back into your secondary account.
  11. Click the notification button.

Platform information

Windows 10 / Chrome (Version 73.0.3683.86)

What is the current bug behavior?

Users are not notified when their request to join a closed group has been accepted/rejected.

What is the expected correct behavior?

Users should be notified when their request to join a closed group has been accepted/rejected.

Relevant logs and/or screenshots

(Paste any relevant logs - please use code blocks (```) to format console output, logs, and code as it's very hard to read otherwise.)

Possible fixes

(If you can, link to the line of code that might be responsible for the problem)