lectern don’t drop the book when breaking

 I think there is a bug with the lecterns in bedrock Edition
The lecterns don’t drop the book when destroyed like item frame; brewing stand; armor stand.
It’s very frustrating because I build a library in my realm I protected spawn area with adventure mode and the there is no way to let other players to take books back from lecterns.Except to set them in survival or creative. Is it a bug? Can you make lecterns function like other item-holding block like brewing stand and item frames?