Dependencies not resolved correctly for split packages

[askask]

When I try to install platformio-udev-rules, the required dependencies are not installed before executing makepkg.

platformio-udev-rules is part of the platformio split package.

$ LC_ALL=C rua install platformio-udev-rules

Reviewing "/home/andreas/.config/rua/pkg/platformio". 
[S]=run shellcheck on PKGBUILD, [D]=(identical to upstream, empty diff), [T]=run shell to edit/inspect, [O]=ok, use package. o
==> Making package: platformio 6.1.6-1 (Wed Feb 15 19:50:41 2023)
==> Checking runtime dependencies...
==> Missing dependencies:
  -> python-bottle
  -> python-pyserial>=3.4
  -> python-semantic-version
  -> python-tabulate
  -> python-pyelftools
  -> python-marshmallow
  -> python-zeroconf
  -> python-aiofiles
  -> python-ajsonrpc
  -> python-starlette
  -> python-wsproto
  -> uvicorn
==> Checking buildtime dependencies...
==> ERROR: Could not resolve all dependencies.
Build failed with exit code 8 in /home/andreas/.cache/rua/build/platformio