Search index contains duplicated entries.

Code sample to generate javadoc

/**
 * {@index Label}
 */

package sample;

public class IndexSample {
}

tag-search-index.json content for the sample above:

[{"l":"Label","h":"IndexSample","u":"IndexSample.html#Label"},{"l":"Label","h":"IndexSample","u":"IndexSample.html#Label"},{"l":"Label","h":"IndexSample","u":"IndexSample.html#Label"}]