Useful information to include:

- Minecraft version 1.16.5
- CC: Tweaked version 1.95.3
- Logs: Pretty sure not needed
- Detailed reproduction steps: Craft a stack of more than one turtle (it happened to me with mining turtles) and craft it in your inventory with a dye, and you will receive more than one turtle per turtle input.

Wojbie pointed out that this is very similar to a bug Plethora also had, so the fix should be the same - SquidDev-CC/plethora@42e615e. I should probably write a test for this, and verify that none of the other recipes have similar issues - looks like the computer convert/upgrade recipe might too.