add blurb

Author: MonadChains

Misc/NEWS.d/next/Library/2025-07-20-15-39-54.gh-issue-124098.znFPIp.rst

@@ -0,0 +1,4 @@
+Fix issue where methods in handlers that lacked the protocol name but
+matched a valid base handler method (e.g., ``_open()`` or ``error()``)
+were incorrectly added to :class:`OpenerDirector`'s handlers.
+Contributed by Andrea Mattei.