It is implemented and should work. Did you start a new save or continued from 0.3.5?
Started from 3.5 but i hadn't gotten to that quest yet. hadn't even gotten to thistle 1.
Yeah, I've found the compability issue that caused that bug. I uploaded the patched version here on itch. If you download it and leave then re-enter the mad mage's workshop it's gonna fix it.
