It’s hard for me to give a reason, because I’m experimenting with running python functions on the C++ side. However, there is a minor side issue right now. Similar in this discussion, where I actually learned about this feature.
The problem is that after calls on the C++ side, the objects that the C++ thread interacted with remain blocked. The problem is that after calls on the C++ side, the objects that the C++ thread interacted with remain locked. However, partially, since nothing happens on the first access (for example, to the list), on the second attempt I can access the object on the python side guaranteed. So I thought about using this feature.