Fix lazy load crash async

[yenchenLiu]

Due to lazy load make async not work, I change the mode from lazy(select) loading to select in loading https://docs.sqlalchemy.org/en/14/orm/loading_relationships.html

In this way, there is no need to query again. But at the same time, if we don't need relationships, it is a waste.

https://docs.sqlalchemy.org/en/14/orm/extensions/asyncio.html#synopsis-orm

And I didn't think there is other ways to solve this problem currently.

[yenchenLiu]

Another option is only use in specific query, but still need to pay attention to whether the schema uses lazy loading.
stmt = select(A).options(selectinload(A.bs))

[ArcLightSlavik]

Should be fixed