Pick block on player head does not use BlockEntityTag

The bug

The BlockEntityTag tag for items should be used when an block and its NBT data is copied using Ctrl + Middle mouse button.
Additionally the copied block gets the Lore: "+NBT"
This is not the case for skulls, they get the NBT data only for their SkullOwner tag. This is problematic because it is inconsistent and also prevents tags added to the skull block in the future to be copied.

How to reproduce

1. Use this command and place the skull

   /give @p minecraft:player_head{SkullOwner:"Notch"} 1
   

2. Copy the skull with its NBT data
   → The copied skull has no "+NBT" Lore