Duplicate filter 1.2 Jean-Christian Denis, Pierre Van Glabeke Antispam for duplicate comments on multiblog https://github.com/JcDenis/dcFilterDuplicate/releases/download/v1.2/plugin-dcFilterDuplicate.zip 2.26 http://plugins.dotaddict.org/dc2/details/dcFilterDuplicate http://forum.dotclear.org/viewtopic.php?pid=332947#p332947