group_dependencies: Invalid specifier: '>=0.4.21+cuda12.cudnn89'

[messense]

• I have searched the issue tracker and believe that this is not a duplicate.

Trying to migrate a project from Poetry to PDM.

Steps to reproduce

pyproject.toml

[tool.poetry]
name = "repro"
version = "0.1.0"
description = ""
authors = []
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.10"
ruff = "^0.1.15"

[tool.poetry.group.jax.dependencies]
jaxlib = { extras = [
    "cuda12-pip",
], version = "^0.4.21+cuda12.cudnn89", source = "jax-releases" }
jax = { extras = ["cuda12-pip"], version = "^0.4.21" }

[[tool.poetry.source]]
name = "jax-releases"
url = "https://storage.googleapis.com/jax-releases/jax_cuda_releases.html"
priority = "explicit"

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

Actual behavior

$ pdm --help
Traceback (most recent call last):
  File "/home/ubuntu/.local/bin/pdm", line 8, in <module>
    sys.exit(main())
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/core.py", line 288, in main
    return Core().main(args or sys.argv[1:])
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/core.py", line 181, in main
    args = self._get_cli_args(args, obj)
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/core.py", line 163, in _get_cli_args
    config = project.pyproject.settings.get("options", {})
  File "/usr/lib/python3.10/functools.py", line 981, in __get__
    val = self.func(instance)
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/project/core.py", line 112, in pyproject
    return PyProject(self.root / self.PYPROJECT_FILENAME, ui=self.core.ui)
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/project/toml_file.py", line 18, in __init__
    self._data = self.read()
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/project/project_file.py", line 33, in read
    metadata, settings = converter.convert(None, self._path, None)
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/formats/poetry.py", line 213, in convert
    return converter.convert()
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/formats/base.py", line 85, in convert
    raise MetaConvertError(errors, data=self._data, settings=self.settings)
pdm.formats.base.MetaConvertError:
group_dependencies: Invalid specifier: '>=0.4.21+cuda12.cudnn89'

Expected behavior

Show pdm help.

Environment Information

Paste the output of pdm info && pdm info --env below:

$ pdm info && pdm info --env
Traceback (most recent call last):
  File "/home/ubuntu/.local/bin/pdm", line 8, in <module>
    sys.exit(main())
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/core.py", line 288, in main
    return Core().main(args or sys.argv[1:])
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/core.py", line 181, in main
    args = self._get_cli_args(args, obj)
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/core.py", line 163, in _get_cli_args
    config = project.pyproject.settings.get("options", {})
  File "/usr/lib/python3.10/functools.py", line 981, in __get__
    val = self.func(instance)
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/project/core.py", line 112, in pyproject
    return PyProject(self.root / self.PYPROJECT_FILENAME, ui=self.core.ui)
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/project/toml_file.py", line 18, in __init__
    self._data = self.read()
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/project/project_file.py", line 33, in read
    metadata, settings = converter.convert(None, self._path, None)
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/formats/poetry.py", line 213, in convert
    return converter.convert()
  File "/home/ubuntu/.local/pipx/venvs/pdm/lib/python3.10/site-packages/pdm/formats/base.py", line 85, in convert
    raise MetaConvertError(errors, data=self._data, settings=self.settings)
pdm.formats.base.MetaConvertError:
group_dependencies: Invalid specifier: '>=0.4.21+cuda12.cudnn89'

$ cd && pdm --version
PDM, version 2.12.2