Minecolonies version

Version:
minecolonies-0.10.761-ALPHA-universal.jar
structurize-0.10.279-RELEASE.jar
Minecraft Version: 1.15.2 (modded) forge-31.1.19

Expected behavior

• Town Hall Information GUI shows:
  "[...]
  Smelter 1/1
  [...]"

Actual behaviour

• Town Hall Information GUI shows:
  "[...]
  Smelter 0/1
  Smelters 1/null
  [...]"

It seems as if the Smeltery worker is registered as "Smelters" while the Smeltery itselfs registers as needing a "Smelter"

Steps to reproduce the problem

1. Build Town Hall and Smeltery with worker
2. Check Town Hall GUI

PS. It also shows "Children 1/null which probably isn't a problem, just looks kind of weird