s.  If called while inside of an update,
 this will push any changes in the current update on to the undo stack
 and result with a fresh undo state, behaving as if <a href="#endUpdate()"><code>endUpdate()</code></a>
 had been called enough to unwind the current update, then the last state
 committed, and <a href="#beginUpdate(java.lang.CharSequence)"><code>beginUpdate(java.lang.CharSequence)</code></a> called to restore the update nesting.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>owner</code>