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-rw-r--r--actionpack/lib/action_controller/metal/filter_parameter_logging.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/actionpack/lib/action_controller/metal/filter_parameter_logging.rb b/actionpack/lib/action_controller/metal/filter_parameter_logging.rb
index 065e62a37f..4259d9de19 100644
--- a/actionpack/lib/action_controller/metal/filter_parameter_logging.rb
+++ b/actionpack/lib/action_controller/metal/filter_parameter_logging.rb
@@ -49,7 +49,7 @@ module ActionController
end
elsif block_given?
key = key.dup
- value = value.dup if value
+ value = value.dup if value.duplicable?
yield key, value
filtered_parameters[key] = value
else