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When a SQL parameter sequence is an exact list, sqlite3 retrieved an element as a borrowed reference before taking ownership. On free-threaded builds another thread can replace it in between, so binding can use a freed object and crash. Fetch a strong reference atomically. Backport to 3.15 and 3.14.
(cherry picked from commit 4df47d8e60)
Co-authored-by: Jelle Zijlstra <jelle@openai.com>