Correct transaction management. cf. bug https://openrdf.atlassian.net/browse/SES-2295 and tomcat default management of PUT request with form data (application/x-www-form-urlencoded encoded)
<div class="corpus-app-content">
{{player-component action="changeDocument" document=currentItem}}
<p><strong>{{ currentItem.title }}</strong></p>
<p>{{ currentItem.language }}</p>
</div>