There are two places in the code where we call Py_DECREF twice when _PyOptimizer_Optimize returns -1. In both cases, we do so in the conditional block and then as part of the GOTO_UNWIND macro. This never really happens in practice, but it would be problematic if this error'd.

Linked PRs

• GH-123545: Remove duplicative Py_DECREF when handling _PyOptimizer_Optimize errors #123546
• [3.13] GH-123545: Remove duplicate Py_DECREF when handling _PyOptimizer_Optimize errors (GH-123546) #123759