Missing i18n key for layouts/shortcodes/propertylist.html title_anchor_prefix

Description of the problem

we seem to be missing a translation key for the propertylist.html shortcode:

title_anchor_prefix

Steps to reproduce it

run hugo with languages enabled

Expected behavior

no warnings would occur

Behavior detected

WARN i18n|MISSING_TRANSLATION|art-x-brk|title_anchor_prefix WARN i18n|MISSING_TRANSLATION|en|title_anchor_prefix

Screenshots