为什么我可以使用井号(#)来破坏vim用户功能命名规则

vimscript帮助文件在定义用户函数时说明：

The function name must start with an uppercase letter,to avoid
confusion with builtin functions.

这是强制执行的,除了我通过查看其他代码发现的以下情况.

"This should not work.
"But it does as long as the function is in a file called 'overrides.vim'.
function! overrides#name() abort
  echo 'Test overrides\name'
endfunction

"This should not work either.
"But it does as long as the file above is in a folder called 'plugin'.
function! plugin#overrides#name() abort 
  echo 'Test plugin\overrides\name'
endfunction

let stupid = {}
"This should not work.
"But it does aslong as the stupid Dictionary is defined.
function! stupid.name() abort
  echo 'Test stupidname'
endfunction


call overrides#name()
call plugin#overrides#name()
call stupid.name()

我到处寻找可以解释这种语法的任何东西.我知道现在有效.我非常好奇的是,对于那些使用过这种语法的人,你在哪里了解它？

是否有其他vimscript功能在帮助文件中没有提到？

此命名语法用于自动加载功能.键入：help autoload-functions以获取帮助.

AUTOMATICALLY LOADING FUNCTIONS ~
                                                          *autoload-functions*
When using many or large functions,it's possible to automatically define them
only when they are used.  There are two methods: with an autocommand and with
the "autoload" directory in 'runtimepath'.