Issue Description:

furnace.getFuel() always return -1

What happens:

furnace.getFuel() always return -1

What you expected to happen:

furnace.getFuel() should return actual time for the fuel

Script used (Please Pastebin or gist your script, posting an unpasted or ungist'd script will automatically close this issue):

https://pastebin.com/nWF1yTzU

Minetweaker.log file (Please Pastebin or gist your file, posting an unpasted or ungist'd file will automatically close this issue):

https://pastebin.com/zPUM2cSW

Affected Versions (Do not use "latest"):

• Minecraft: 1.12.2
• Forge: 14.23.2.2611
• Crafttweaker: 4.1.2
• MTLib: 3.0.1

So this is an issue with how Forge changes furnace fuel times, there is nothing I can do to fix it fully, but I have added some code which should make it a bit more reliable