Rethink content keys as ES > 5.0 will not allow empty keys
back to ?\ yes\ why\ not,\ and\ only
(from redmine: issue id 609, created on 2018-01-22tgradl, closed on 2018-01-24)
back to ?\ yes\ why\ not,\ and\ only
(from redmine: issue id 609, created on 2018-01-22tgradl, closed on 2018-01-24)