goto-definition doesn't work in specific case

[dschneiderch]

it doesn't find the function definition if I use
from src.data import *
to import all functions of all files in the directory src/data/

My folder structure:
project root
-src/
--init.py
--data/
----import_functions.py
----preprocess_functions.py
----init.py

I find importing each file tedious and would like to import all of them at once by including
__all__ = ["import_functions","preprocess_functions.py"] in src/data/init.py

If I use from src.data import import_functions then I can use goto-definition for any function in import_functions.py

Thanks for your work on the wonderful package!