pipenv uninstall leaves entry in Pipfile [packages]

tl;dr pipenv uninstall setuptools does not remove the entry from Pipfile section [packages].

Steps to replicate

1. create a new project and install a virtual environment

$ mkdir proj1

$ cd proj1

$ pipenv --python 3.7
Creating a virtualenv for this project…
…
Successfully created virtual environment!
Virtualenv location: C:\Users\ulug\.virtualenvs\temp1-wqpe6Y-N
Creating a Pipfile for this project…

$ pipenv install setuptools
…

The generated Pipfile has contents

[[source]]
name = "pypi"
url = "https://pypi.org/simple"
verify_ssl = true

[dev-packages]

[packages]
setuptools = "*"

[requires]
python_version = "3.7"

Uninstall setuptools

$ pipenv uninstall setuptools

UNEXPECTED: Pipfile still has entry setuptools = "*" in section [packages] (the Pipfile has not changed). EXPECTED: pipenv would remove entry setuptools = "*" in section [packages]. The --help output reads

$ pipenv --help
…
 uninstall  Un-installs a provided package and removes it from Pipfile.
…

---

$ pipenv --support

Pipenv version: '2018.11.26'

Pipenv location: 'c:\\python\\python37\\lib\\site-packages\\pipenv'

Python location: 'c:\\python\\python37\\python.exe'

Python installations found:

• 3.7.1: C:\Python\Python37\python.exe
• 3.6.7: C:\Python\Python36\python.exe
• 3.5: C:\Python\Python35\python.exe
• 3.4: C:\Python\Python34\python.exe

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.7.1',
 'os_name': 'nt',
 'platform_machine': 'AMD64',
 'platform_python_implementation': 'CPython',
 'platform_release': '10',
 'platform_system': 'Windows',
 'python_full_version': '3.7.1',
 'python_version': '3.7',
 'sys_platform': 'win32'}

[tombohub]

happens with every package if you put version also pipenv uninstall django==3.1.0

so you can install with version, but you cannot uninstall with version…

[zvolsky]

also happens … always?