 value
</span>    <span class='id identifier rubyid_old_values'>old_values</span><span class='lbracket'>[</span><span class='id identifier rubyid_key'>key</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='const'>RequestStore</span><span class='period'>.</span><span class='id identifier rubyid_store'>store</span><span class='lbracket'>[</span><span class='symbol'>:button_defaults</span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='id identifier rubyid_k