schema_info returns unexpected result for items in a list

[braingram]

Description of the problem

If a node is contained in a list schema_info returns unexpected results.

Example of the problem

import asdf

MY_TAG_URI = "asdf://somewhere.org/tags/foo-1.0.0"
MY_SCHEMA_URI = "asdf://somewhere.org/tags/foo-1.0.0"

schema_bytes = f"""%YAML 1.1
---
$schema: "http://stsci.edu/schemas/yaml-schema/draft-01"
id: {MY_SCHEMA_URI}
title: "some title"
""".encode("ascii")


class MyExtension:
    extension_uri = "asdf://somewhere.org/extensions/foo-1.0.0"
    tags = [asdf.extension.TagDefinition(
        MY_TAG_URI,
        schema_uris=[MY_SCHEMA_URI],
    )]


asdf.get_config().add_resource_mapping({MY_SCHEMA_URI: schema_bytes})


class Thing:
    _tag = MY_TAG_URI

    def __asdf_traverse__(self):
        return []


ext = MyExtension()

with asdf.config_context() as cfg:
    cfg.add_extension(ext)
    af = asdf.AsdfFile({
        "my_list": [
            0,  # not a Thing
            Thing(),
        ]
    })
    print(af.schema_info("title"))

Outputs:

{'my_list': [{'title': some title}]}

Note that the 'title' containing dict is the 0th item in the list, not the 1st (as would match the tree).
Passing preserve_list=False results in:

{'my_list': {1: {'title': some title}}}

which is closer to the truth but (as the argument describes) returns a structure that does not match the tree (my_list is a dict in the result).

System information

asdf version: main
python version: 3.12
operating system: macosx