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-rw-r--r--actionpack/lib/action_view/helpers/record_tag_helper.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/actionpack/lib/action_view/helpers/record_tag_helper.rb b/actionpack/lib/action_view/helpers/record_tag_helper.rb
index b351302d01..aae6389445 100644
--- a/actionpack/lib/action_view/helpers/record_tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/record_tag_helper.rb
@@ -96,8 +96,8 @@ module ActionView
# for each record.
def content_tag_for_single_record(tag_name, record, prefix, options, &block)
options, prefix = prefix, nil if prefix.is_a?(Hash)
- options ||= {}
- options.merge!({ :class => "#{dom_class(record, prefix)} #{options[:class]}".strip, :id => dom_id(record, prefix) })
+ options = options ? options.dup : {}
+ options.merge!(:class => "#{dom_class(record, prefix)} #{options[:class]}".strip, :id => dom_id(record, prefix))
if block.arity == 0
content_tag(tag_name, capture(&block), options)
else