arnaudasselin
Hi
Try this
Open /components/com_community/templates/jomsocial/layouts/search.advancesearch.php
Find and remove
joms.jQuery('#'+operator).attr("checked", true);
now find
<input type="radio" name="operator" id="operator_any" value="or" class="joms-input--radio" >
replace it with
<input type="radio" name="operator" id="operator_any" value="or" class="joms-input--radio" checked="checked">
clear cache and check.
take backup of original file before apply changes.
Regards