`${count(ident)}` is not equivalent to `${count(ident, 0)}`

[zjp-CN]

${count(ident)}: The number of times $ident repeats in the inner-most repetition in total. This is equivalent to ${count(ident, 0)}.

refer to: rust-lang/rust#83527 (comment)

[eduardmitrica]

It seems that the semantics have been swapped, and now, ${count(...)} counts from the innermost repetition outward, which is the reverse of what was previously described in this issue. Refer now to: New count semantics.

This can also be attested by running the following code from the book: ${count(ident)} is equivalent to ${count(ident, 0)} sample.