Failure to load partial_parse.msgpack: `int is not allowed for map key when strict_map_key=True`

partial_parse_repro.py

#!/usr/bin/env -S uv run --script
# /// script
# requires-python = ">=3.12"
# dependencies = [
#     "dbt-core==1.11.6",
#     "dbt-postgres==1.10.0",
# ]
# ///


from contextlib import chdir
import json
import os
import re
from tempfile import TemporaryDirectory
from subprocess import check_call as sh
from pathlib import Path
from textwrap import dedent


def main() -> None:
    with TemporaryDirectory() as tmpdir, chdir(tmpdir):
        os.environ["DBT_PROJECT_DIR"] = tmpdir
        os.environ["DBT_PROFILES_DIR"] = tmpdir
        os.environ["DO_NOT_TRACK"] = "1"

        Path("profiles.yml").write_text(
            dedent("""
                test_profile:
                    outputs:
                        default:
                            type: postgres
                            host:     '{{ env_var("DB_HOST", "") }}'
                            user:     '{{ env_var("DB_USERNAME", "") }}'
                            password: '{{ env_var("DB_PASSWORD", "") }}'
                            port:     '{{ env_var("DB_PORT", "0") | as_native }}'
                            dbname:   '{{ env_var("DB_NAME", "") }}'
                            schema:   '{{ env_var("DB_SCHEMA", "") }}'
            """)
        )

        Path("dbt_project.yml").write_text(
            dedent("""
                name: test_project
                version: '0.1'
                profile: test_profile
                model-paths: ["models"]
                models:
                    test_project:
                        +meta:
                            my_meta_key:
                                0: foo
                                1: bar
            """)
        )

        Path("models").mkdir()
        Path("models/mymodel.sql").write_text("select 1")

        print("=== PARSE #1 ===")
        sh(["dbt", "parse"])
        print()

        print("=== PARSE #2 ===")
        sh(["dbt", "parse", "--debug"])

        assert any(
            re.search(
                "Failed to load parsed file from disk at .*: int is not allowed for map key when strict_map_key=True",
                line,
            )
            for line in Path("logs/dbt.log").read_text().splitlines()
        )


if __name__ == "__main__":
    main()