calendar_date_select_tagのバグ

form_helper.rbの98,99行目
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def calendar_date_select_tag( name, value = nil, options = {})
image, options, javascript_options = calendar_date_select_process_options(options)

def calendar_date_select_tag( name, value = nil, options = {})
image, alt, options, javascript_options = calendar_date_select_process_options(options)

まだ挙動がおかしい気がする・・・