ass="lineno">  496</span>            {</div>
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span>                <span class="comment">// all DOF are fixed</span></div>
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span>                <span class="keywordflow">if</span>(new_buffer.origin_data() != old_buffer.origin_data())</div>
<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span>                {</div>
<div cl