Fix inability to assign services with no variables, closes pterodactyl#447

Author: DaneEveritt

CHANGELOG.md

@@ -3,6 +3,10 @@ This file is a running track of new features and fixes to each version of the pa
 
 This project follows [Semantic Versioning](http://semver.org) guidelines.
 
+## v0.6.1 (Courageous Carniadactylus)
+### Fixed
+* Fixes a bug preventing the use of services that have no variables attached to them.
+
 ## v0.6.0 (Courageous Carniadactylus)
 ### Fixed
 * Bug causing error logs to be spammed if someone timed out on an ajax based page.

app/Repositories/ServerRepository.php

@@ -733,6 +733,10 @@ protected function parseVariables(Server $server)
             $i++;
         }
 
+        if ($parsed->count() === 0) {
+            return collect($merge);
+        }
+
         return $parsed->merge($merge);
     }