Using this plugin produces noise messages at startup

[leandro-lucarella-frequenz]

When I install this plugin, I get this message each time I start neovim:

remote/host: python3 host registered plugins ['blacken.py']
remote/host: generated rplugin manifest: /home/luca/.local/share/nvim/rplugin.vim
Press ENTER or type command to continue

This is particularly annoying because I then need to press ENTER each time I start nvim.

I think you must be calling UpdateRemotePlugins each time the plugin starts or something, because that's what's producing the message. According to the nvim docs, this should be called only when something is installed, removed or updated.

I'm using Packer as plugin manager, not sure if this is relevant.

This took me a long time to debug and find out, so reporting it mostly in case other people is bumping into this, maybe I can save them some time. I'll probably not follow up on this bug report because then I found out I never really actually used the plugin, I'm just using :!black % and that's it, so I don't plan to keep using the plugin.