always keep spamfilter_users entries: #6201

install/dist/tpl/gentoo/amavisd-ispconfig.conf.master

install/sql/incremental/upd_dev_collection.sql

install/sql/ispconfig3.sql

install/tpl/amavisd_user_config.master

install/tpl/fedora_amavisd_conf.master

install/tpl/opensuse_amavisd_conf.master

interface/lib/classes/remote.d/client.inc.php

interface/lib/classes/remote.d/mail.inc.php

interface/lib/plugins/mail_mail_domain_plugin.inc.php

interface/web/client/client_del.php

interface/web/mail/form/spamfilter_users.tform.php

interface/web/mail/lib/lang/ar_spamfilter_users.lng

interface/web/mail/lib/lang/bg_spamfilter_users.lng

interface/web/mail/lib/lang/br_spamfilter_users.lng

interface/web/mail/lib/lang/ca_spamfilter_users.lng

interface/web/mail/lib/lang/cz_spamfilter_users.lng

interface/web/mail/lib/lang/de_spamfilter_users.lng

interface/web/mail/lib/lang/dk_spamfilter_users.lng

interface/web/mail/lib/lang/el_spamfilter_users.lng

interface/web/mail/lib/lang/en_spamfilter_users.lng