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-rw-r--r--actionpack/lib/action_dispatch/routing/route_set.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb
index e1f9fc9ecc..68bd6d806b 100644
--- a/actionpack/lib/action_dispatch/routing/route_set.rb
+++ b/actionpack/lib/action_dispatch/routing/route_set.rb
@@ -279,6 +279,8 @@ module ActionDispatch
if args.size < path_params_size
path_params -= controller_options.keys
path_params -= result.keys
+ else
+ path_params = path_params.dup
end
inner_options.each_key do |key|
path_params.delete(key)