Unhelpful errors for projects in root directory

• Poetry version: 1.3.1
• Python version: 3.11
• OS version and name: ubuntu
• pyproject.toml: see below

• I am on the latest stable Poetry version, installed using a recommended method.
• I have searched the issues of this repo and believe that this is not a duplicate.
• I have consulted the FAQ and blog for any relevant entries or release notes.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option) and have included the output below.

Issue

Repro: running docker build . with this Dockerfile shows an unhelpful "tuple index out of range" error:

FROM python:3.11

RUN curl -sSL https://install.python-poetry.org | python3 -
ENV PATH=/root/.local/bin:$PATH
RUN poetry --version
RUN poetry init
RUN poetry install

Seems to happen when packages is not specified in pyproject.toml and poetry tries to automatically add an Include that has a glob pattern ., which is an invalid glob:

>>> list(Path("/").glob("."))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.8/pathlib.py", line 1139, in glob
    selector = _make_selector(tuple(pattern_parts), self._flavour)
  File "/usr/local/lib/python3.8/pathlib.py", line 463, in _make_selector
    pat = pattern_parts[0]
IndexError: tuple index out of range

Start by running docker build . with the Dockerfile shown and inspect the generated pyproject.toml. Trace the automatic Include handling when packages is omitted and the resulting Path.glob(".") failure. Done means root-directory projects avoid the invalid glob or report a useful error, with a regression test for this reproduction.