unable to stat 'tests/roots/test-images/testimäge.png': No such file

[sentry-io]

Sentry Issue: DIST2SRC-UPDATE-77

GitCommandError: Cmd('git') failed due to: exit code(128)
  cmdline: git add --renormalize .
  stderr: 'fatal: unable to stat 'tests/roots/test-images/testimäge.png': No such file or directory'
(4 additional frame(s) were not displayed)
...
  File "dist2src/core.py", line 851, in update_source_git
    commit_body="Reverting patches so we can apply the latest update\n"
  File "dist2src/core.py", line 223, in revert_to_ref
    self.repo.git.add("--renormalize", ".")
  File "git/cmd.py", line 542, in <lambda>
    return lambda *args, **kwargs: self._call_process(name, *args, **kwargs)
  File "git/cmd.py", line 1005, in _call_process
    return self.execute(call, **exec_kwargs)
  File "git/cmd.py", line 822, in execute
    raise GitCommandError(command, status, stderr_value, stdout_value)