uv add treats valid pyproject.toml as invalid #6785
Description
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.4 LTS
Release: 22.04
Codename: jammy
$ uv -vv add --optional foo pyright
0.006241s DEBUG uv uv 0.4.0
0.006540s DEBUG uv_workspace::workspace Found project root: `/home/metaist/github.com/ds`
0.007855s DEBUG uv_workspace::workspace No workspace root found, using project root
0.008276s DEBUG uv::commands::project The virtual environment's Python version satisfies `Python >=3.8`
uv_requirements::specification::from_source source=pyright
uv_client::linehaul::linehaul
0.009417s DEBUG uv_client::base_client Using request timeout of 30s
uv_resolver::flat_index::from_entries
error: Dependencies in `pyproject.toml` are malformed
Here's the pyproject.toml.
Interestingly, if I run uv add pyright or uv add --dev pyright it works just fine.