fixed wrong brackets, now waypoint list clearing works again

src/uas/UASWaypointManager.cc

@@ -870,9 +870,9 @@ void UASWaypointManager::writeWaypoints()
 
             //send the waypoint count to UAS (this starts the send transaction)
             sendWaypointCount();
+        } else if (waypointsEditable.count() == 0) {
+            sendWaypointClearAll();
         }
-    } else if (waypointsEditable.count() == 0) {
-        sendWaypointClearAll();
     } else {
         //we're in another transaction, ignore command
         qDebug() << "UASWaypointManager::sendWaypoints() doing something else ignoring command";