(Generic) Package registry: "select" seems not to work

I tried using the generic package registry for storing tagged builds. (Which works super flawless and amazing.)

I found a little discrepancy between the documentation and the "is".

The docs say:

select: The response payload. By default, the response is empty. Valid values are: package_file. package_file returns details of the package file record created by this request.

And a little more down in the documentation there are two examples (simplified in this issue here):

Example response without attribute select: {"message":"201 Created"}
Example response with attribute select = package_file: { "id": 1, "package_id": 1, ... }

But when I try this (following the status example), it seems not to work:

$ curl --header "PRIVATE-TOKEN: ${TOKEN}" --upload-file file.txt "https://gitlab.example.com/api/v4/projects/277/packages/generic/my_package/0.0.1-alpha1/test?select=package_file"

I just get the standard response:

{"message":"201 Created"}

Using self-hosted GitLab 14.4.0

So:

• There might be a bug with select attribute
• If there is no bug, an improvement to the documentation how to use the select attribute would be helpful

Thank you!