keep interrupt flag for subflows
keep interrupt flag for subflows

pulilab/rapidpro,tsotetsi/textily-web,tsotetsi/textily-web,tsotetsi/textily-web,pulilab/rapidpro,pulilab/rapidpro,tsotetsi/textily-web,tsotetsi/textily-web,pulilab/rapidpro,pulilab/rapidpro