(pg_tsparser + ts_headline) duplicate output if dot present

[vicreal]

CREATE EXTENSION pg_tsparser;
CREATE TEXT SEARCH CONFIGURATION public.ts_config_test (PARSER = tsparser);
SELECT ts_headline('vp_ts_config_test', 'one.two', websearch_to_tsquery('three'), 'HighlightAll=TRUE, StartSel="<mark>", StopSel="</mark>"');

Result: one.twoone.two

Must be: one.two

Environment: Windows 10 + PostgreSQL 14.4 + pg_tsparser 1.0.0 (last version).