cleanup doc

crates/ty_python_semantic/resources/mdtest/import/nonstandard_conventions.md

@@ -882,7 +882,10 @@ x = funcmod(1)
 
 ## A Tale of Two Modules
 
-`from typing import TYPE_CHECKING` has side-effects???
+This is a nonsensical regression test for some incredibly cursed interaction in `ty` where we get
+confused `mypackage.conflicted`. The worst part is that resolving an import
+`from typing import <anything that resolves>` is load-bearing, and `typing` seems to be special
+here. There is no known reason why `typing` should be special here.
 
 ### In Stub