gs.addInfoMessage or gs.addErrorMessage shows multiple Error message in Workspace

[SomashekarB]

Before BR rules run on insert or update is showing multiple error messages

(function executeRule(current, previous /*null when async*/) {

    var caseRecord = new GlideRecord('incident');

    caseRecord.get(current.table_sys_id);

    if (caseRecord.state == '7') {

        gs.flushMessages();

       gs.addInfoMessage('Attachments cannot be added or removed when the state is closed or resolved.');

        current.setAbortAction(true);

    }

})(current, previous);