If all recipes are unlocked, you cannot set the furnace to "show all" while the crafting table is on "show craftable".

To reproduce:

• Create a world in 18w06a or 18w07a.
• Do /recipe give @a *
• Open a crafting table and set the recipe book to only show craftable items.
• Open a furnace and open the recipe book.

Another route:

• Create a world in 18w06a or 18w07a.
• Do /recipe give @a *
• Open a furnace and set the recipe book to only show craftable items.
• Open a crafting table and set the recipe book to only show craftable items.
• Open a furnace and change the recipe book to show all items.