validate the key that will be generate from the label is not reserved
validate the key that will be generate from the label is not reserved

tsotetsi/textily-web,ewheeler/rapidpro,tsotetsi/textily-web,ewheeler/rapidpro,pulilab/rapidpro,reyrodrigues/EU-SMS,tsotetsi/textily-web,pulilab/rapidpro,reyrodrigues/EU-SMS,ewheeler/rapidpro,pulilab/rapidpro,reyrodrigues/EU-SMS,pulilab/rapidpro,pulilab/rapidpro,ewheeler/rapidpro,tsotetsi/textily-web,tsotetsi/textily-web