Python version mismatch only installs non-dev dependencies

[my1e5]

Usually, when working on my rye-managed projects, if I change the .python-version I always run rye sync afterwards and all is fine.

But if I don't run rye sync things are also usually fine. It will detect a Python version mismatch and re-initialise the virtualenv.

Until I came across this error. If I change the .python-version and then immediately run a command such a rye run mypy . - where mypy is one of my dev-dependencies in my pyproject.toml. It will detect the Python version mismatch but it seems to only install the non-dev dependencies.

❯ rye run mypy .
Python version mismatch (found [email protected], expected [email protected]), recreating.
Initializing new virtualenv in C:\Users\my1e5\Projects\Research\Python\.venv
Python version: [email protected]
Generating production lockfile: C:\Users\my1e5\Projects\Research\Python\requirements.lock
Generating dev lockfile: C:\Users\my1e5\Projects\Research\Python\requirements-dev.lock
Installing dependencies
   Built file:///C:/Users/my1e5/Projects/Research/Python
Built 1 editable in 1.22s
Installed 7 packages in 2.42s
 + attrs==23.2.0
 + cffi==1.16.0
 + myproject==0.2.0 (from file:///C:/Users/my1e5/Projects/Research/Python)
 + numpy==1.26.4
 + pycparser==2.22
 + scipy==1.13.1
 + soundfile==0.12.1
error: invalid or unknown script 'mypy'

It didn't install mypy. Those packages are all my normal dependencies. It didn't install any dev dependencies.

The reason I found this out is because it's causing my CI workflow to fail - eifinger/setup-rye#263

Is there a reason why dev-dependencies aren't installed in this case? Is it a bug?