dirstate-item: ignore mtime to write v1 when `mtime-second-ambiguous` is set
We cannot preserve that information in the v1 format so that mtime is ambiguous.
Differential Revision: https://phab.mercurial-scm.org/D11844
[build-system]
requires = ["setuptools", "wheel"]
[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
'''
skip-string-normalization = true
quiet = true