Background image after upgrade Hugo Academics 4.7 to 4.8

Using Themes
1

When I upgraded Hugo Academic from 4.7 to 4.8 home page widget background image is not shown and generated html is different. Source repo: https://github.com/valasek/cercanyvobraze

Generated html in 4.7

<section id="email_skupina" class="home-section wg-blank dark bg-image parallax" style="background-image:linear-gradient(rgba(0,0,0,0.6),rgba(0,0,0,0.6)),url('https://www.cercanyvobraze.cz/img/cercany.jpg');background-position:50%;padding:20px 0">
</section>

vs. 4.8

<section id="email_skupina" class="home-section wg-blank   ">
</section>

Any help appreciated.
Might be loosly related to the issue: https://github.com/gcushen/hugo-academic/issues/1814

2

The Academic theme has a dedicated issues queue and community chat. Please post your question there. Thanks.