fix minor bug with option-less initialisation
fix minor bug with option-less initialisation

magicdawn/ractive,marcalexiei/ractive,ractivejs/ractive,ractivejs/ractive,cgvarela/ractive,p0lax/ractive,Rich-Harris/ractive,magicdawn/ractive,aliprogrammer69/ractive,squaredup/ractive,marcalexiei/ractive,thomsbg/ractive,JonDum/ractive,magicdawn/ractive,ISNIT0/ractive,ndimas/ractive,dyx/ractive,cgvarela/ractive,thomsbg/ractive,heavyk/ractive,JonDum/ractive,JonDum/ractive,ractivejs/ractive,npmcomponent/RactiveJS-Ractive,ndimas/ractive,Rich-Harris/ractive,heavyk/ractive,squaredup/ractive,aliprogrammer69/ractive,heavyk/ractive,cgvarela/ractive,ISNIT0/ractive,marcalexiei/ractive,dyx/ractive,squaredup/ractive,ndimas/ractive,p0lax/ractive,npmcomponent/RactiveJS-Ractive,ISNIT0/ractive,dyx/ractive,pingjiang/ractive,pingjiang/ractive,thomsbg/ractive,aliprogrammer69/ractive,pingjiang/ractive,Rich-Harris/ractive