events: Send invites_changed event if user deactivation revokes invites.

revoke_invites_generated_by_user should send invites_changed event if it
actually revokes some invitations. This is called in the user
deactivatoin codepath.

zerver/lib/actions.py

@@ -7628,6 +7628,8 @@ def revoke_invites_generated_by_user(user_profile: UserProfile) -> None:
         confirmation.expiry_date = now
 
     Confirmation.objects.bulk_update(confirmations_to_revoke, ["expiry_date"])
+    if len(confirmations_to_revoke):
+        notify_invites_changed(realm=user_profile.realm)
 
 
 def do_create_multiuse_invite_link(

zerver/tests/test_events.py

@@ -744,7 +744,25 @@ class NormalActionsTest(BaseAction):
         )
         check_invites_changed("events[0]", events[0])
 
+    def test_deactivate_user_invites_changed_event(self) -> None:
+        self.user_profile = self.example_user("iago")
+        user_profile = self.example_user("cordelia")
+        invite_expires_in_days = 2
+        do_invite_users(
+            user_profile,
+            ["foo@zulip.com"],
+            [],
+            invite_expires_in_days=invite_expires_in_days,
+        )
+
+        events = self.verify_action(
+            lambda: do_deactivate_user(user_profile, acting_user=None), num_events=2
+        )
+        check_invites_changed("events[0]", events[0])
+
     def test_revoke_user_invite_event(self) -> None:
+        # We need set self.user_profile to be an admin, so that
+        # we receive the invites_changed event.
         self.user_profile = self.example_user("iago")
         streams = []
         for stream_name in ["Denmark", "Verona"]: