leap_ca_daemon: connection to couchdb fails on koala

i encountered today with the latest leap_ca:

root@koala:/srv/leap_ca_daemon# leap_ca_daemon run --
leap_ca: process with pid 10494 started.
 * Loading configuration /srv/leap_ca_daemon/config/config_default.yaml
 * Loading configuration /etc/leap/leap_ca.yaml
DEPRECATION WARNING: Yajl::HttpStream is going to be removed in 2.0
 * Tracking https://admin:XXXXX@sloth.bitmask.i:6984/client_certificates
/var/lib/gems/1.9.1/gems/yajl-ruby-1.1.0/lib/yajl/http_stream.rb:155:in `request': Code 200 expected got 0 (Yajl::HttpStream::HttpError)
        from /var/lib/gems/1.9.1/gems/yajl-ruby-1.1.0/lib/yajl/http_stream.rb:32:in `get'
        from /srv/leap_ca_daemon/lib/leap_ca/couch_stream.rb:12:in `get'
        from /srv/leap_ca_daemon/lib/leap_ca/couch_changes.rb:8:in `last_seq'
        from /srv/leap_ca_daemon/lib/leap_ca/couch_changes.rb:14:in `follow'
        from /srv/leap_ca_daemon/lib/leap_ca_daemon.rb:19:in `'
        from /srv/leap_ca_daemon/lib/leap_ca_daemon.rb:9:in `'
        from /var/lib/gems/1.9.1/gems/daemons-1.1.9/lib/daemons/application.rb:203:in `load'
        from /var/lib/gems/1.9.1/gems/daemons-1.1.9/lib/daemons/application.rb:203:in `start_load'
        from /var/lib/gems/1.9.1/gems/daemons-1.1.9/lib/daemons/application.rb:298:in `start'
        from /var/lib/gems/1.9.1/gems/daemons-1.1.9/lib/daemons/controller.rb:73:in `run'
        from /var/lib/gems/1.9.1/gems/daemons-1.1.9/lib/daemons.rb:147:in `block in run'
        from /var/lib/gems/1.9.1/gems/daemons-1.1.9/lib/daemons/cmdline.rb:109:in `call'
        from /var/lib/gems/1.9.1/gems/daemons-1.1.9/lib/daemons/cmdline.rb:109:in `catch_exceptions'
        from /var/lib/gems/1.9.1/gems/daemons-1.1.9/lib/daemons.rb:146:in `run'
        from /usr/local/bin/leap_ca_daemon:51:in `'

(from redmine: created on 2012-12-16, closed on 2012-12-16, duplicates #1166 (closed), blocks #1093 (closed))