The set ingest processor converts json to string

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1

Hello,
I have an array of objecs that I create in a temporary field on my document.
I then want to use the value from that temporary field in place of the actual value of another field (originally an array of string).
When I use the Set processor, my Json is converted to a plain String.

Why is it doing this and how can I have it do what I'm looking for?

Notes:
I already tried to use the convert processor but there is no object type.
I also tried to use the JSON processor but for some reason, it doesn't recognize the string.

2

Instead, I used a script processor and directly called the add method of the Array.

{
  "script": {
    "if": "true",
    "lang": "painless",
    "source": "ctx.MyArray.add(ctx.UnityEntry)"
  }
}
3

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