refmt does not preserve original placing of comments

In the below snippet NewListener and RemoveListener are both above /* Stream events */.

  [@bs.send.pipe : T.t]
  external on :
    (
    [@bs.string]
    [
      /* EventEmitter events */
      [@bs.as "newListener"]
      | `NewListener((string, 'any) => unit)
      [@bs.as "removeListener"] | `RemoveListener((string, 'any) => unit)
      /* Stream events */
      /* Readable Stream events */
      [@bs.as "close"] | `Close(unit => unit)
      [@bs.as "error"] | `Error(Error.t => unit)
      [@bs.as "data"] | `Data(Node.string_buffer => unit)
      [@bs.as "end"] | `End(unit => unit)
      [@bs.as "readable"] | `Readable(unit => unit)
    ]
    ) =>
    T.t =
    "";

It gets formatted as:

  [@bs.send.pipe : T.t]
  external on :
    (
    [@bs.string]
    [
      /* EventEmitter events */
      [@bs.as "newListener"]
      | `NewListener((string, 'any) => unit)
      /* Stream events */
      /* Readable Stream events */
      [@bs.as "removeListener"] | `RemoveListener((string, 'any) => unit)
      [@bs.as "close"] | `Close(unit => unit)
      [@bs.as "error"] | `Error(Error.t => unit)
      [@bs.as "data"] | `Data(Node.string_buffer => unit)
      [@bs.as "end"] | `End(unit => unit)
      [@bs.as "readable"] | `Readable(unit => unit)
    ]
    ) =>
    T.t =
    "";

RemoveListener gets pushed below /* Stream events */ and /* Readable Stream events */.

Run refmt on the Reason snippet in the issue and compare the output with the original comment positions. Trace the formatter behavior responsible for comments around the variant cases. Done means refmt preserves the placement of both Stream events comments while continuing to format the surrounding code correctly.