Test collection fails with repeated test module name (but unique paths)

While working on https://github.com/conda-forge/staged-recipes/pull/16888 (and after fixing the issues in #9300), I'm still having collection problems:

==================================== ERRORS ====================================
________ ERROR collecting tensorflow_addons/layers/tests/snake_test.py _________
import file mismatch:
imported module 'snake_test' has this __file__ attribute:
  $SRC_DIR/tensorflow_addons/activations/tests/snake_test.py
which is not the same as the test file we want to collect:
  $SRC_DIR/tensorflow_addons/layers/tests/snake_test.py
HINT: remove __pycache__ / .pyc files and/or use a unique basename for your test file modules

This is because upstream has both
tensorflow_addons/activations/tests/snake_test.py as well as tensorflow_addons/layers/tests/snake_test.py.

While I can see that reusing the name for the file is not ideal, it's something that can happen fairly easily in larger code bases, and since the path is unique (i.e. distinguished by the containing folder), I don't really see why this shouldn't be working / supported?

If the answer is no, I'll can work around it (e.g. carrying a patch that renames the tests), but wanted to ask at least.

Reproduce collection with the two named snake_test.py paths under tensorflow_addons/activations/tests and tensorflow_addons/layers/tests. Start by tracing pytest's test-module import and path handling around the reported import-file mismatch, then determine whether unique paths can be supported; done should include a defined outcome for this case and regression coverage if behavior changes.