get_template_part appears to be removing a class on h2 - php

Question

I'm working on a custom template part that includes an h2 with the classes "sectionmarker" and "bodycontent", like this:
<h2 class="sectionmarker bodycontent">Title</h2>
When I call get_template_part() on a page, the output I'm getting is:
<h2 class="bodycontent">Title</h2>
For some reason, it seems not to like "sectionmarker". I even switched the order of the two classes, like this:
<h2 class="bodycontent sectionmarker">Title</h2>
And I get the same output with only the bodycontent class applied. What's going on here?
Full template content:
<?php
$abstract=get_post_field('post_content',224);
$news=get_posts(array(
'post_type'=> 'news'
));
$newsdata=array();
foreach ($news as $n) {
$item=new stdClass();
$item->title=get_the_title($n->ID);
$item->date=get_the_date("",$n->ID);
$item->content=get_field('more_info',$n->ID);
array_push($newsdata,$item);
}
$newsdata_json=json_encode($newsdata);
?>
<script type="text/javascript">
console.log(<?php echo $newsdata_json ?>);
</script>
<?php
echo $abstract;
if(count($newsdata)>0){
?>
<h2 class="sectionmarker bodycontent" >News</h2>
<?php foreach ($newsdata as $newsitem) { ?>
<h4 class='datemarker bodycontent'><?php echo $newsitem->date ?></h4>
<p class='newstext bodycontent'><?php echo $newsitem->title ?></p>
<?php } } ?>
and here's the call I'm making (in home.php):
get_template_part('custom-home-template',null,array());

Answer 1

Nevermind! I just remembered I have some JavaScript that's changing the h2 classes on load.