Describe the bug
Coke produced by IE coke oven is from thermal series, however IE machinist villager wants IE coke only.
So it only possible to waste emeralds on hammers if you want to level him up (cause there are two trades at the start - buy coke and sell hammer)

To Reproduce
Steps to reproduce the behavior:

1. Smelt coal or coal block in Immersive Coke oven
2. you get Coke/Coke block from Thermal series
3. Get Machinist villager from IE (workstation - anvil) Andtry to sell coke.
4. Villager does not accept thermal coke, IE coke is unobtainable. So you shoul just by tons of hammers for 4 emeralds - that's insane

Expected behavior
Villager accept any coke, or Coke oven gives IE coke

Screenshots

As a workaround, you can probably get IE coal coke from the mekanism oredictionifier. It might unify in your inventory into thermal coal coke, but not sure. If it does, just put the villager into a villager trading block from @easyvillagers and pipe from the oredictionifer directly into that