pipx includes current working dir in import path during install

[GUIpsp]

Describe the bug

pipx install considers the current working dir as import path during install.

How to reproduce

cd $(mktemp -d)
echo "raise" > re.py
pipx install magic-wormhole # or anything else, really

Expected behavior
Pipx installs the package, ignoring cwd

Actual behavior
Pipx errors out, because of the file in cwd

Extra

This probably has some security implications, but I could not find anywhere specific to report security issues, and it's probably low severity anyways.