View file upload/library/XenForo/ViewPublic/Thread/Create.php

<?php

class XenForo_ViewPublic_Thread_Create extends XenForo_ViewPublic_Base
{
	public function renderHtml()
	{
		if (!empty($this->_params['captcha']))
		{
			$this->_params['captcha'] = $this->_params['captcha']->render($this);
		}

		$this->_params['editorTemplate'] = XenForo_ViewPublic_Helper_Editor::getEditorTemplate(
			$this, 'message', !empty($this->_params['draft']) ? $this->_params['draft']['message'] : '',
			array('autoSaveUrl' => XenForo_Link::buildPublicLink('forums/save-draft', $this->_params['forum']))
		);
	}
}