Add mtime to receiving filename, so that we dont have name clashes with systems that use the same archive name for our host

app/Classes/File/Item.php

@@ -36,7 +36,7 @@ final class Item extends Receive
 				return Storage::disk(config('fido.local_disk'))->exists($this->rel_name);
 
 			case 'pref_name':
-				return sprintf('%04X-%s',$this->ao->id,$this->recvas);
+				return sprintf('%04X-%d-%s',$this->ao->id,$this->recvmtime,$this->recvas);
 			case 'rel_name':
 				return sprintf('%s/%s',config('fido.dir'),$this->pref_name);
 			case 'full_name':