Error with lists enclosed in html headings tags

[nepos87]

Describe the Bug

When creating a word file if in the text there is a bulleted list enclosed by an H4 tag or any of the html headings tags passed through the Html::addHtml() function, processing stops and the error is: Cannot add ListItemRun in TextRun.

Steps to Reproduce

<?php
require __DIR__ . '/vendor/autoload.php';

$phpWord = new \PhpOffice\PhpWord\PhpWord();
$section = $phpWord->addSection();
$text = '<h4><ul><li>List 1</li><li>List 2</li></ul></h4>';
Html::addHtml($section, $text);

header("Content-Description: File Transfer");
header('Content-Disposition: attachment; filename="Test"');
header('Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document');
header('Content-Transfer-Encoding: binary');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Expires: 0');
$xmlWriter = IOFactory::createWriter($phpWord, 'Word2007');
ob_clean();
$xmlWriter->save("php:https://output");

Context

• PHP Version: 7.4
• PHPWord Version: 0.18.3