So I have the following test:

Post #1 has a title and a body, and is present in the database.
Post #2 has the same title but a different body, and is not yet present in the database.

I have the following upsert logic:

%Post{}
|> Post.changeset(params)
|> Repo.insert(
  conflict_target: [:title],
  on_conflict: [
    set:
      params
      |> Map.to_list()
  ]
)
|> IO.inspect()

I supply this upsert with Post #2, meaning that I expect Post #1 to be updated to ‘become’ Post #2.
When I pipe this Repo.Insert into IO.inspect I notice that the ID is different from the ID in Post #1. However, when I check the database there is only one record, and it’s in the state I expect it to be in, meaning that the upsert was succesful. When did this ID get corrected?

I hope my explanation makes sense, and thank you in advance