Bug: help 显示的插件描述不正常

[XxLittleCxX]

Describe the bug

help 显示的插件描述不正常

Steps to reproduce

ctx.command('foo.bar', 'should not be here')

然后调用 help，显示 .foo should not be here

有 ctx.command('foo') 定义时，help 中 foo 正常，不显示描述

Expected behavior

help 中只显示 .foo

Screenshots

No response

Versions

"@koishijs/plugin-commands": "^3.1.2",
"@koishijs/plugin-help": "^2.2.2",
"koishi": "^4.12.2",

Additional context

No response