Subparsers help is not shown

Usually I describe in short what a subcommand does by putting a text into a subparsers help argument. Argparser renders it like this:

$ disco -h
usage: disco [-h] [-v] [-o] {search,mix,suggest,import,setup} ...

positional arguments:
  {search,mix,suggest,import,setup}
    search              searches for releases and tracks in the Discogs
                        collection. Several actions can be executed on the
                        found items, eg. adding to a mix, updating track info
                        from Discogs or fetching additional information from
                        MusicBrainz/AcousticBrainz. View this subcommand's
                        help: disco search -h.
    mix                 manages your mixes. View this subcommand's help:
                        "disco mix -h."       
...          

This help is not shown anywhere in autoprogram generated manpages or html pages. How could I enable it so it is included in the main command section similar to how argparser shows it in main command --help?

Start by tracing autoprogram's generation of manpages and HTML pages, then find where argparse subparser descriptions are handled for the main command section. Compare that output with the shown argparse help and verify that subparser help appears in both generated formats without losing existing command documentation.