every apply forces replacement

[stevethecollier]

first off, thanks for making this lib, much appreciated.

here is my config:

resource "typesense_collection" "user" {
  name = "user"
  fields {
    name = "name"
    optional = true
    type = "string"
  }
  fields {
    name = "id"
    optional = false
    type = "string"
    index = true
  }
}

and the issue is that every time I run terraform apply, I get

  # module.application.module.search.typesense_collection.user must be replaced
-/+ resource "typesense_collection" "user" {
      ~ id            = "user" -> (known after apply)
        name          = "user"
      ~ num_documents = 1 -> (known after apply)

      ~ fields {
          ~ facet    = false -> (known after apply)
            name     = "name"
            # (3 unchanged attributes hidden)
        }
      + fields {
          + facet    = (known after apply)
          + index    = true # forces replacement
          + name     = "id"
          + optional = false # forces replacement
          + type     = "string" # forces replacement
        }
    }

I would assume that this should not force replacement since I haven't change anything.

am I doing something wrong, or is this a bug?