Fresh install ends with "fatal: unable to read" #1379

[INFO] This may take a few minutes...
An unexpected error has occurred: CalledProcessError: command: ('/Library/Developer/CommandLineTools/usr/libexec/git-core/git', 'diff', '--staged', '--name-only', '--no-ext-diff', '-z', '--diff-filter=ACMRTUXB')
return code: 128
expected return code: 0
stdout: (none)
stderr:
    fatal: unable to read 0aadd30bdf64ada67f76ff3b00dcf77c811563ef

# See https://pre-commit.com for more information
# See https://pre-commit.com/hooks.html for more hooks
repos:
  - repo: https://github.com/pre-commit/pre-commit-hooks
    rev: v2.4.0
    hooks:
      - id: trailing-whitespace
      - id: end-of-file-fixer
      - id: check-yaml
      - id: check-added-large-files
      - id: debug-statements

  - repo: https://github.com/psf/black
    rev: stable
    hooks:
      - id: black

  - repo: https://gitlab.com/pycqa/flake8
    rev: 3.7.9
    hooks:
      - id: flake8
        additional_dependencies: [
            flake8-bugbear,
            # Handle assigment expression https://www.python.org/dev/peps/pep-0572/
            "-e",
            "git+https://github.com/pycqa/pyflakes@1911c20#egg=pyflakes",
            "-e",
            "git+https://github.com/pycqa/pycodestyle@d219c68#egg=pycodestyle",
          ]

  - repo: https://github.com/pre-commit/mirrors-mypy
    rev: v0.770
    hooks:
      - id: mypy

  - repo: https://github.com/prettier/prettier
    rev: 1.19.1
    hooks:
      - id: prettier
        args: [--prose-wrap=always, --print-width=88]

  - repo: local
    hooks:
      - id: tests
        name: run tests
        entry: poetry run pytest -v
        files: "test_*"
        verbose: true
        language: system
        types: [python]
        stages: [push, manual]