Fix for system registration, new systems couldnt be added.

app/Http/Controllers/SystemController.php

@@ -580,7 +580,7 @@ class SystemController extends Controller
 	}
 
 	/**
-	 * register system
+	 * Register a system, or link to an existing system
 	 */
 	public function system_register(SystemRegister $request)
 	{
@@ -588,14 +588,14 @@ class SystemController extends Controller
 		if ($request->isMethod('GET'))
 			return view('user.system.register');
 
-		if ($request->action != 'create')
+		if ($request->action === 'register' && $request->system_id)
 			return view('user.system.widget.register_confirm')
 				->with('o',System::findOrFail($request->system_id));
 
 		$o = System::findOrNew($request->system_id);
 
 		// If the system exists, and we are 'register', we'll start the address claim process
-		if ($o->exists && $request->action == 'register') {
+		if ($o->exists && $request->action === 'Link') {
 			$validate = Setup::findOrFail(config('app.id'))->system->inMyZones($o->addresses);
 
 			// If we have addresses, we'll trigger the routed netmail