Couchdb::Create_db[users]/Couchdb::Document[users_security] fails on fresh deploy

from ci testing, develop branch:

   - [rewdevcouch1] err: /Stage[main]/Site_couchdb::Create_dbs/Couchdb::Create_db[users]/Couchdb::Document[users_security]/Exec[couch-doc-update --host 127.0.0.1:5984 --db users --id _security --data '{ "admins": {"names": [], "roles": [] }, "members": { "names": [], "roles": ["users"] } }']/returns: change from notrun to 0 failed: couch-doc-update --host 127.0.0.1:5984 --db users --id _security --data '{ "admins": {"names": [], "roles": [] }, "members": { "names": [], "roles": ["users"] } }' returned 1 instead of one of [0] at /srv/leap/puppet/modules/couchdb/manifests/document.pp:23

(from redmine: created on 2014-03-07, closed on 2014-04-17, relates #3712 (closed), relates #5443 (closed))