I came across this post ( http://lucene.472066.n3.nabble.com/Payload-doesn-t-apply-to-WordDelimiterFilterFactory-generated-tokens-td3136748.html) and tried to find a JIRA for this task. Was one ever created? If not I'd be happy to create it if this is still something that makes sense or if instead there is another recommended approach for supporting cloning attributes like payload from the source token stream in the WordDelimiterFilterFactory.