When there are two modules that expose a function with the same name, and those get imported directly (using aliases), the control flow is resolved incorrectly.

Example:
module_a.py

def foo():
    return 'module_a.foo'

module_b.py

def foo():
    return 'module_b.foo'

test.py

from module_a import foo as foo_a
from module_b import foo as foo_b

foo_a()
foo_b()

This will lead to a control flow that calls the function module_a.foo twice instead of once for each version.