Putting certain enchanted items into the first anvil slot and doing nothing else will show "too expensive", even though trying to rename or combine with a book will still be allowed.

What I expected to happen was:
If I put any item into the Anvil slot without doing anything it would just show me the crossed out arrow.

What actually happened was:
I put an item with multiple enchantments and it showed me it was "too expensive to do nothing with it"

Steps to reproduce:
1. Enchant a diamond sword with these enchants:
Fire Aspect II
Looting III
Sharpness V
Unbreaking III
Knockback II
Sweeping Edge III
2. Put a normal diamond sword in the first anvil slot, notice it will just show the crossed out arrow.
3. Put the enchanted sword into the first anvil slot, it will show "too expensive".
4. Try to rename it or combine books with that sword, it will then show the actual enchantment cost.
Edit: In newer versions renaming the item might be required but the bug is still there.