PersistentCollection fails on detached entities with FORCE_LAZY_LOADING

When `Feature.FORCE_LAZY_LOADING` is enabled, serialising a detached entity that has an non-initialised `PersistentCollection` fails with a `com.fasterxml.jackson.databind.JsonMappingException: failed to lazily initialize a collection of role: ..., could not initialize proxy - no Session`.

The workaround is to call `Hibernate.initialize(Object)` on collection before detaching the containing entity.

I can somehow imaging why this is expected behaviour, but shouldn't lazy loading be treated differently for detached entities?