Fix variant filter (hex!)

Author: dwerning

src/main/java/tla/backend/es/query/SentenceSearchQueryBuilder.java

@@ -30,7 +30,7 @@ public void setContext(Context context) {
 		if (textId != null) {
 			log.info("sentence query: receive {} textIDs", textId);
 			textQuery.must(QueryBuilders.termQuery("context.textId", textId)); // Set text ID of which sentences should be retrieved
-         textQuery.mustNot(QueryBuilders.regexpQuery("id", ".*\\-([0-9][1-9]|[0-9]+[0-9][0-9])")); // Sort out all sentence reading variants except for "-00" 
+         textQuery.must(QueryBuilders.regexpQuery("id", "[^\\-]*|.*\\-00")); // Sort out all sentence reading variants except for "-00" 
 			this.filter(textQuery);
 		}