`guild` and `guilds` make no effect

Summary

guild and guilds in add_cog function make no effect on commands in cog

Reproduction Steps

I was trying to understand how this kwargs works and found it.

Minimal Reproducible Code

# cog.py
class Cog(commands.Cog):
    @app_commands.command()
    async def ping(self, inter):
        ...

def setup(bot):
    bot.add_cog(Cog(), guild=discord.Object(GUILD_ID))

# main.py
bot.load_extension('cog')

Expected Results

bot.tree.get_commands(guild=discord.Object(GUILD_ID))  #  [<discord.app_commands.commands.Command ...>]
bot.tree.get_commands()  # None

Actual Results

bot.tree.get_commands(guild=discord.Object(GUILD_ID))  # None
bot.tree.get_commands()  #  [<discord.app_commands.commands.Command ...>]

Intents

default

System Information

• Python v3.10.1-final
• discord.py v2.0.0-alpha
  • discord.py pkg_resources: v2.0.0a3843+gd921a039
• aiohttp v3.8.1
• system info: Windows 10 10.0.22000

Checklist

• I have searched the open issues for duplicates.
• I have shown the entire traceback, if possible.
• I have removed my token from display, if visible.

Additional Context

I made a research and came to the conclusion that the root of the issue is here (ext/commands/bot.py#L608) and/or here (ext/commands/cog.py#L503)

[Rapptz]

Right now, the guild and guilds keyword arguments only do anything if the cog is also a group. I figured the remaining uses of guild and guilds would be done via the decorators. I guess the fact this issue exists means that the behaviour is surprising, so I suppose I should make it so it applies regardless of whether the cog is a group or not.

[m1raynee]

Yes, but then they will no longer be “free”, so there is no such thing. Feel free to reopen the issue if there is.