Invalid requirements.txt generation

pyproject.toml

[tool.poetry]
name = "foo"
version = "0.1.0"
description = ""
authors = ["Matthew Schinckel <matt@schinckel.net>"]

[tool.poetry.dependencies]
django = [
  {version = "==1.11.26", python = "~2.7"},
  {version = "*", python = ">=3.6"}
]
urllib3 = "*"

[tool.poetry.dev-dependencies]


[build-system]
requires = ["poetry>=0.12"]
build-backend = "poetry.masonry.api"

requirements.txt

asgiref==3.2.3; python_version >= "3.6"
django==1.11.26; python_version >= "2.7" and python_version < "2.8" or python_version >= "3.6"
django==3.0; python_version >= "3.6"
pytz==2019.3; python_version >= "2.7" and python_version < "2.8" or python_version >= "3.6"
sqlparse==0.3.0; python_version >= "3.6"
urllib3==1.22
urllib3==1.25.7