HTML Writer losing title text

[begnini]

This is:

• a bug report
• a feature request
• not a usage question (ask them on https://stackoverflow.com/questions/tagged/phpword)

Expected Behavior

Html Writer should write the title text.

Current Behavior

When the text content of a Title is a TextRun, the writer is losing the text, returning a empty <h1>.

Failure Information

If a title contains a TextRun instead a string, the writer is losing the text and returning empty between the header tags.

How to Reproduce

Please provide a code sample that reproduces the issue.

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

$phpWord = new PhpWord();
$section = $phpWord->addSection();

$textRun = new TextRun();
$textRun->addText('TextRun with Title');
        
$title = $section->addTitle($textRun);

$htmlWriter = new HTML($phpWord);
$content = $htmlWriter->getContent();

# should be true, is returning false
echo (strpos($content, 'TextRun with Title') !== false);

Context

• PHP version: 7.2.2
• PHPWord version: 0.15