[0.15.16] desync on blueprint copy

[NF-Floyd]

Desync happened on copying a blueprint book from another users library to my library in the MP-game.
Because running without mods, it seems to have tried to migrate content (remove entities).

It also seemed that I was not able to close the blueprint book menu - it always plopped open again if I tried to close. But this may be just caused by lagging - it felt like the rubber band you sometimes experience when walking.

Screenshot:
https://mega.nz/#!XccWxTaL!13Lo1iD65phb ... 0Ya5Bzcnik

Desync Report:
https://mega.nz/#!vRsjCIgB!JfqVosInUW3n ... VVr3d3gz80