Dokku certs:add losing https proxy map

gistfile1.txt

root@dokku:~# uname -a
Linux dokku 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
root@dokku:~# free -m
              total        used        free      shared  buff/cache   available
Mem:           3950         363         527         163        3059        3327
Swap:             0           0           0
root@dokku:~# docker version
Client:
 Version:      1.11.2
 API version:  1.23
 Go version:   go1.5.4
 Git commit:   b9f10c9
 Built:        Wed Jun  1 22:00:43 2016
 OS/Arch:      linux/amd64

Server:
 Version:      1.11.2
 API version:  1.23
 Go version:   go1.5.4
 Git commit:   b9f10c9
 Built:        Wed Jun  1 22:00:43 2016
 OS/Arch:      linux/amd64
root@dokku:~# docker -D info
Containers: 14
 Running: 7
 Paused: 0
 Stopped: 7
Images: 51
Server Version: 1.11.2
Storage Driver: aufs
 Root Dir: /var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 128
 Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: null host bridge
Kernel Version: 4.4.0-31-generic
Operating System: Ubuntu 16.04.1 LTS
OSType: linux
Architecture: x86_64
CPUs: 2
Total Memory: 3.858 GiB
Name: dokku
ID: GP4W:HWAX:4G4D:QZV2:MTSC:GYRQ:M2GL:7WTQ:BC3G:RAFC:YU7B:OLN5
Docker Root Dir: /var/lib/docker
Debug mode (client): true
Debug mode (server): false
Registry: https://index.docker.io/v1/
WARNING: No swap limit support
root@dokku:~# sigil -v
0.4.0
root@dokku:~# docker run -ti gliderlabs/herokuish:latest herokuish version
herokuish: 0.3.13
buildpacks:
  emberjs.tgz                latest
  buildpack-nginx            v5
  heroku-buildpack-clojure   v75
  heroku-buildpack-erlang    fa17af9
  heroku-buildpack-go        v36
  heroku-buildpack-gradle    v17
  heroku-buildpack-grails    v20
  heroku-buildpack-java      v44
  heroku-buildpack-multi     v1.0.0
  heroku-buildpack-nodejs    v90
  heroku-buildpack-php       v102
  heroku-buildpack-play      v26
  heroku-buildpack-python    v80
  heroku-buildpack-ruby      v146
  heroku-buildpack-scala     v70
root@dokku:~# dokku version
0.6.5
root@dokku:~# dokku plugin
plugn: dev
  00_dokku-standard    0.6.5 enabled    dokku core standard plugin
  20_events            0.6.5 enabled    dokku core events logging plugin
  apps                 0.6.5 enabled    dokku core apps plugin
  build-env            0.6.5 enabled    dokku core build-env plugin
  certs                0.6.5 enabled    dokku core certificate management plugin
  checks               0.6.5 enabled    dokku core checks plugin
  common               0.6.5 enabled    dokku core common plugin
  config               0.6.5 enabled    dokku core config plugin
  docker-options       0.6.5 enabled    dokku core docker-options plugin
  domains              0.6.5 enabled    dokku core domains plugin
  enter                0.6.5 enabled    dokku core enter plugin
  git                  0.6.5 enabled    dokku core git plugin
  http-auth            0.4.0 enabled    HTTP authentication for apps
  letsencrypt          0.8.4 enabled    Automated installation of let's encrypt TLS certificates
  logs                 0.6.5 enabled    dokku core logs plugin
  named-containers     0.6.5 enabled    dokku core named containers plugin
  nginx-vhosts         0.6.5 enabled    dokku core nginx-vhosts plugin
  plugin               0.6.5 enabled    dokku core plugin plugin
  postgres             1.0.0 enabled    dokku postgres service plugin
  proxy                0.6.5 enabled    dokku core proxy plugin
  ps                   0.6.5 enabled    dokku core ps plugin
  rabbitmq             1.0.0 enabled    dokku rabbitmq service plugin
  redirect             0.4.0 enabled    Simple redirects for apps
  repo                 0.5.3 enabled    dokku core repo plugin
  shell                0.6.5 enabled    dokku core shell plugin
  storage              0.6.5 enabled    dokku core storage plugin
  tags                 0.6.5 enabled    dokku core tags plugin
  tar                  0.6.5 enabled    dokku core tar plugin
root@dokku:~# cat /home/dokku/myapp/nginx.conf

server {
  listen      [::]:80;
  listen      80;
  server_name myapp.com *.myapp.com;
  access_log  /var/log/nginx/myapp-access.log;
  error_log   /var/log/nginx/myapp-error.log;

  return 301 https://$host:$request_uri;

}

upstream myapp-80 {

  server 172.17.0.8:80;
}