Pitcher plant doesn't craft into two dyes, which is inconsistent with other two block tall flowers

Unlike other two block tall flower plants, pitcher plants don't craft into two dyes.

Steps to Reproduce:

• Get a pitcher plant and another two tall flower (e.g. sunflower)
• Put other two tall flower into crafting grid
  • Crafts two dyes
• Put pitcher plant into crafting grid
  • Observed: only crafts one dye
  • Expected: would craft two dyes like other double flowers