Version 3.7.x incorrectly formats using private val definition

[seigert]

Configuration (required)

version = 3.7.3
runner.dialect = scala3

style = defaultWithAlign

rewrite {
  rules = [
    SortModifiers
  ]

  sortModifiers.order = [
    "override",
    "implicit",
    "private", "protected",
    "sealed", "abstract", "final",
    "lazy"
  ]
}

Command-line parameters (required)

When I run scalafmt via CLI like this: scalafmt Test.scala

Steps

Given code like this:

//> using scala "3.2.1"
//> using option "-new-syntax"

//> using dep "org.typelevel::cats-effect:3.5.0"

import cats.effect.Concurrent

final class Test[F[_]](using private val F: Concurrent[F]) extends AnyVal:
  def both[A](fa1: F[A], fa2: F[A]): F[(A, A)] = F.both(fa1, fa2)

Problem

Scalafmt reports error during format:

~/Test.scala:8: error: [dialect scala3] val expected but identifier found
final class Test[F[_]](private using val F: Concurrent[F]) extends AnyVal:

At the same time adding using to rewrite.sortModifiers.order results in error

Unknown input 'using'. Expected one of: lazy, inline, open, implicit, final, opaque, transparent, sealed, infix, protected, private, override, abstract

Expectation

I would like the Scalafmt to respect implicit modifiers order.

Also, scala compiler prohibits using between private & val:
final class Test[F[_]](private using val F: Concurrent[F]) results in

[error] ./Test.scala:8:32
[error] `val` or `var` expected
[error] final class Test[F[_]](private using val F: Concurrent[F]) extends AnyVal:

Workaround

I've found that by replacing using with implicit with problem could be mitigated.