Bad formatting for nested tuple field accesses on style_edition < 2024 when the accesses are formatted on different lines.

[WaffleLapkin]

The following is output of rustfmt:

fn f() {
    x.f()
        .0
         .0
        .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa();
}

Note that the second .0 is offset by a single space. I know that this is because of compatibility with old rustc versions that lexed .0.0 as a float (i.e. #4355 (comment)).

However, in this case, the additional space is not needed -- they are on different lines (and in fact have multiple spaces just because of the indentation).

[ytmimi]

style_edition < 2024 is currently stable, so I don't think there's much we can do to change the formatting. Maybe we could treat this as a bug fix? @calebcartwright what are your thoughts?