From 7c144ad432a46a0be0eebd300b4fab857cbae6ce Mon Sep 17 00:00:00 2001
From: Thomas McDonald <thomas-mcdonald@users.noreply.github.com>
Date: Mon, 17 Aug 2020 11:44:25 +0100
Subject: [PATCH] avoid mutation of user args (#548)

---
 lib/rolify/resource.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rolify/resource.rb b/lib/rolify/resource.rb
index fa7af672..45159ec8 100644
--- a/lib/rolify/resource.rb
+++ b/lib/rolify/resource.rb
@@ -11,7 +11,7 @@ def find_roles(role_name = nil, user = nil)
 
       def with_role(role_name, user = nil)
         if role_name.is_a? Array
-          role_name.map!(&:to_s)
+          role_name = role_name.map(&:to_s)
         else
           role_name = role_name.to_s
         end