refactor(backend): keep scheduled shutdowns

lib/Ravada.pm

@@ -4599,7 +4599,7 @@ sub _remove_unnecessary_downs($self, $domain) {
 
         my @requests = $domain->list_requests(1);
         for my $req (@requests) {
-            $req->status('done') if $req->command =~ /shutdown/;
+            $req->status('done') if $req->command =~ /shutdown/ && !$req->at_time;
             $req->_remove_messages();
         }
 }