[3.15] gh-150042: queue.SimpleQueue.put: fix minor refleak. (GH-150043)#150127
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This was referenced May 19, 2026
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If queue.SimpleQueue.put can't handoff the item to a
waiting thread, and fails to allocate memory when adding
the item to a ringbuf, it would leak a reference. Fixed.
(cherry picked from commit 79088e0)
Co-authored-by: larryhastings larry@hastings.org