docs: function (item) {
              var searchTerms = self.viewModel.attr('searchTerms').attr(),
                searchTerm = item && (item.id || item.name || item);
              searchTerms.splice(searchTerms.indexOf(searchTerm), 1);
              // We are using searchTerms's setter to execute the filter, so have to set the property (not just update):
              self.viewModel.attr('searchTerms', searchTerms);
            }