Regarding AST form with qualified call

Questions & Help Questions
1

I’ve been reading a great AST guide that I really recommend.

One of the examples given in the first part correctly states that…

quote do
  Foo.{Bar, Baz}
end
#=>
{
  {:., [], [{:__aliases__, [], [:Foo]}, :{}]},
  [],
  [{:__aliases__, [], [:Bar]}, {:__aliases__, [], [:Baz]}]
}

There is an explanation given in the guide as to why the form [alias, :{}] is used, but I don’t really understand why there would be ambiguity in using the form below…

quote do
    Foo.{Bar, Baz}
end
#=>
  {
      :., 
      [], 
      [
          {:__alias__, [], [:Foo]}, 
          {:{}, [], [{:__alias__, [], [:Bar]}, {:__alias__, [], [:Baz]}]}
      ]
  }

I put the above hypothetical AST in a Macro.to_string call, and I got the following error.

** (CaseClauseError) no case clause matching: :Bar
    (elixir 1.16.0) lib/code/formatter.ex:2319: Code.Formatter.force_args?/2
    (elixir 1.16.0) lib/code/formatter.ex:1172: Code.Formatter.call_args_to_algebra_no_blocks/6
    (elixir 1.16.0) lib/code/formatter.ex:1109: Code.Formatter.call_args_to_algebra/6
    (elixir 1.16.0) lib/code/formatter.ex:1056: Code.Formatter.local_to_algebra/5
    (elixir 1.16.0) lib/code/formatter.ex:1695: anonymous fn/5 in Code.Formatter.args_to_algebra_with_comments/7
    (elixir 1.16.0) lib/code/formatter.ex:1998: Code.Formatter.each_quoted_to_algebra_without_comments/4
    (elixir 1.16.0) lib/code/formatter.ex:1984: Code.Formatter.quoted_to_algebra_with_comments/6
    iex:33: (file)

Is my AST not correct?