static SimpleLiveValue dm_fieldLiveValue_verbose(S fieldName) {
  ret dm_fieldLiveValue_verbose(dm_current_mandatory(), fieldName);
}

static SimpleLiveValue dm_fieldLiveValue_verbose(final DynModule module, fS fieldName) {
  lock module.lock;
  Class type = getFieldType(module, fieldName);
  final SimpleLiveValue value = new(type, get(module, fieldName));
  module.onChange(r {
    O v = get(module, fieldName);
    print("dm_fieldLiveValue_verbose: module change to " + v);
    value.set(v);
  });
  value.onChange(r {
    O v = value!;
    print("dm_fieldLiveValue_verbose: value change to " + v);
    module.setField(fieldName, v);
    print("  contentsDirty=" + getOpt(dm_getStem(module), 'contentsDirty));
  });
  ret value;
}

Began life as a copy of #1015971