Table.update(TOMLDocument) is missing a nesting level

[thvitt]

Trying to update a Table entry from a TOMLDocument should insert the top-level entries of the document into the table entry, however it inserts them at the top level. Test case:

import tomlkit
import tomli


def test_parsed_subentry():
    example = "[entry]\nfoo = 'bar'"
    subentry = "bar = 23\n\n[subentry]\n'subkey' = 'subvalue'"

    doc_tomlkit = tomlkit.loads(example)
    doc_tomli = tomlkit.loads(example)

    doc_tomlkit["entry"].update(tomlkit.loads(subentry))
    doc_tomli["entry"].update(tomli.loads(subentry))

    doc_tomlkit_output = tomlkit.dumps(doc_tomlkit)
    doc_tomli_output = tomlkit.dumps(doc_tomli)

    print("## Inserted tomli-parsed subentry ##", doc_tomli_output, sep="\n")
    print("## Inserted tomlkit-parsed subentry ##", doc_tomlkit_output, sep="\n")

    assert tomli.loads(doc_tomlkit_output) == tomli.loads(doc_tomli_output)

Output:

## Inserted tomli-parsed subentry ##
[entry]
foo = 'bar'
bar = 23

[entry.subentry]
subkey = "subvalue"

## Inserted tomlkit-parsed subentry ##
[entry]
foo = 'bar'
bar = 23

[subentry]
'subkey' = 'subvalue'