static new ThreadLocal<Bool> mechList_clearCache_inFunction;

svoid mechList_clearCache(S listName) {
  {
    temp tempSetTL(mechList_clearCache_inFunction, true);
    print("Sending mech clear: " + listName);
    vmBus_send('mechList_clearCache, listName);
  }
  
  mechList_clearCache_noSend(listName);
}
  
svoid mechList_clearCache_noSend(S listName) {
  for (S field : mcFields())
    if (startsWithEndsWith(field, "mech", "_cache")) {
      O o = getOptMC(field);
      if (o instanceof Map)
        removeFromMapCI_sync((Map) o, listName);
    }
    
  /*if (mechList_goToCreator())
    callCreatorOpt('mechList_clearCache, listName);*/
}

Began life as a copy of #1014253