f Assert reorg emits no payment event

Verify that moving a shallow payment back to unconfirmed does not emit
a settled event. Reconfirmation coverage remains with the deferred stale
pending-entry fix.

Co-Authored-By: HAL 9000

Author: tnull

tests/integration_tests_rust.rs

@@ -1044,6 +1044,8 @@ async fn reorged_onchain_payment_returns_to_unconfirmed() {
 
 	node_a.sync_wallets().unwrap();
 	node_b.sync_wallets().unwrap();
+	assert_eq!(node_a.next_event(), None);
+	assert_eq!(node_b.next_event(), None);
 
 	for node in [&node_a, &node_b] {
 		let payment = node.payment(&payment_id).unwrap();