Don't leave messages for hidden accounts :D

plugins/revspace_saldo

@@ -12,6 +12,7 @@ sub _box(@lines) {
 
 sub hook_checkout_done($class, $cart, $user, $transaction_id, @) {
     defined $user or return;  # hacks like 'undo' don't have an acting user
+    RevBank::Users::is_hidden($user) and return;
 
     my $balance = RevBank::Users::balance($user) or return;
     my $since   = RevBank::Users::since($user);