Poetry created wheel puts includes into root of site-packages folder & is missing included folders.

• Poetry version: Poetry (version 1.2.2)
• Python version: Python: 3.10.6
• OS version and name: macOS 12.6
• pyproject.toml: https://gist.github.com/MarximusMaximus/19b84135b3da1f1670f50e06bc364d00

• 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

When installing a wheel created by poetry and having specified include= in pyproject.toml, the included files get extracted into the root of the site-packages folder.

Steps:

• add include= to pyproject.toml (see example)
• poetry build
• pip install
• ls -l

Alternative Steps for Verification:

• add include= to pyproject.toml (see example)
• poetry build
• cd
• mkdir sdist
• tar -xzf <built .tar.gz> -C sdist
• mkdir wheel
• tar -xzf <build .whl> -C wheel
• ls -l sdist
• ls -l wheel

Results:

• note that the files from the includes list are now in the site-packages folder/root extracted folder, not inside any of the built package folders
• additionally, included folders are missing from the wheel

Expected:

• the files from the include list would not be in site-packages/root extracted folder itself, but in one of the built package's folders [as occurs with the sdist built version]

sdist result:

./
../
pytest_shell_script_test_harness-0.1.0.dev0/
    CHANGELOG.rst       <---
    LICENSE             <---
    PKG-INFO
    README.md
    pyproject.toml      <---
    setup.py
    src/
    tests/              <---

wheel result:

./
../
CHANGELOG.rst           <---
LICENSE                 <---
pyproject.toml          <---
pytest_shell_script_test_harness/
    __impl.py
    __init__.py
    coverage_plugin.py
    py.typed
    resources/
pytest_shell_script_test_harness-0.1.0.dev0.dist-info/
    LICENSE
    METADATA
    RECORD
    WHEEL
    entry_points.txt

NOTE: 'tests' folder missing from wheel

Start with the linked pyproject.toml and reproduce the issue using poetry build, then compare the extracted wheel and sdist contents. Trace the wheel-building path that handles include=; done means included files are placed under the intended package and included folders, such as tests, are present in the wheel.