Some comment at _PyOptimizer_Optimize

Author: efimov-mikhail

Python/optimizer.c

@@ -119,6 +119,10 @@ _PyOptimizer_Optimize(
     _PyStackRef *stack_pointer = frame->stackpointer;
     PyInterpreterState *interp = _PyInterpreterState_GET();
     if (!interp->jit) {
+        // gh-140936: It is possible that interp->jit will become false during
+        // interpreter finalization. However, the specialized JUMP_BACKWARD_JIT
+        // instruction may still be present. In this case, we should
+        // return immediately without optimization.
         return 0;
     }
     assert(!interp->compiling);