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-rw-r--r--actionpack/lib/action_dispatch/routing/url_for.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/actionpack/lib/action_dispatch/routing/url_for.rb b/actionpack/lib/action_dispatch/routing/url_for.rb
index 5d354b0fb8..de14113c51 100644
--- a/actionpack/lib/action_dispatch/routing/url_for.rb
+++ b/actionpack/lib/action_dispatch/routing/url_for.rb
@@ -140,7 +140,7 @@ module ActionDispatch
when String
options
when nil, Hash
- _routes.url_for((options.dup || {}).reverse_merge!(url_options).symbolize_keys)
+ _routes.url_for((options || {}).reverse_merge(url_options).symbolize_keys)
else
polymorphic_url(options)
end