fixed: constraint-triggered closed-modified handler not filtering out updates on repeat instances with index > 0
fixed: constraint-triggered closed-modified handler not filtering out updates on repeat instances with index > 0

closes https://github.com/kobotoolbox/enketo-express/issues/739

OpenClinica/enketo-express-oc,OpenClinica/enketo-express-oc,OpenClinica/enketo-express-oc