Design docs are not configured after manually purging the DBs and redeploying

load_design_documents.sh is set to refreshonly, so it is executed when the design docs have changed:

                                                                                
  exec { '/srv/leap/couchdb/scripts/load_design_documents.sh':                  
    subscribe   => File['/srv/leap/couchdb/designs'],                           
    refreshonly => true,                                                        
    require     => Vcsrepo['/srv/leap/couchdb/scripts']                         
  }    

which is smart, but doesn't help in this case. we should deploy them on every puppetrun.

(from redmine: created on 2013-12-16, closed on 2017-01-05, relates #4754 (closed))