Class org.hibernate.engine.spi.EntityEntry consumes lots of memory

The class

consumes a high amount of memory. I'm not referring to long-term memory, but since there is a high frequency of allocations of these, the cost of allocating all these objects is high.
(In a general purpose test which isn't working just on ORM we can accumulate ~200GB of memory of these in 25 minutes)

Very similar to HHH-8682, bot probably much harder to improve.