It is actually missing. I did not alter the code in any way. So there isn’t a ” ” (space) in there. It’s simply empty.
<select id="acf_field_group-location-group_0-rule_0-value" class="" name="acf_field_group[location][group_0][rule_0][value]" data-ui="0" data-ajax="0" data-multiple="0" data-placeholder="Auswählen" data-allow_null="0">
<option value="acf-options-gobal-settings"></option>
<option value="acf-options-multilingual-settings"></option>
<option value="acf-options-post-teaser"></option>
<option value="acf-options-hero-header" selected="selected" data-i="0"></option>
<option value="acf-options-featured-sites"></option>
<option value="acf-options-news"></option>
<option value="acf-options-events"></option>
<option value="acf-options-classic-layout">Pagestyle: Classic Layout</option>
<option value="timber-bulma-documentation">Documentation</option><option value="calendar-api">Calendar API</option>
</select>
