[3.11] gh-99891: Fix infinite recursion in the tokenizer when showing warnings (GH-99893) (GH-99896)

Automerge-Triggered-By: GH:pablogsal.
(cherry picked from commit 417206a05c4545bde96c2bbbea92b53e6cac0d48)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>