code: public void setValueOff(String newValue, @Nullable String newName) {
              if (!isChecked()) { // refining on valueOff: facetRefinement needs an update
                  searcher.updateFacetRefinement(attribute, valueOff, false)
                          .updateFacetRefinement(newName != null ? newName : attribute, newValue, true)
                          .search();
              }
          this.valueOff = newValue;
          applyEventualNewAttribute(newName);
      }
docs: Changes the Toggle's valueOff, updating facet refinements accordingly.
  
  @param newValue valueOff's new value.
  @param newName  an eventual new attribute name.