bug? -m markdown-docs not respected

[sg-s]

i think i found a bug:

when i do:

pytest --markdown-docs -m markdown-docs --markdown-docs-syntax=superfences -x

i see:

platform darwin -- Python 3.13.4, pytest-8.3.5, pluggy-1.5.0
rootdir: /Users/srinivas/code/cli
configfile: pyproject.toml
plugins: anyio-4.9.0, markdown-docs-0.9.0, xdist-3.6.1
collected 164 items / 110 deselected / 54 selected                                                      

<truncated> 

docs/platform/ref/platform.md ......                                                              [ 74%]
docs/tools/how-to/list-tools.md .                                                                 [ 75%]
src/drug_discovery/structures/internal_structures.py F

note the last line -- it's looking at .py files, not .md files

[freider]

I think this is the expected behavior - the -m markdown-docs marker filters for markdown tests in general (i.e. any detected by this plugin), even those that are in docstrings of python files. It should be preventing collection of any actual python function-based tests though