fix adding preivous
fix adding preivous

petebacondarwin/doctrine,Constellation/doctrine,fivetran/doctrine,aeisenberg/doctrine,googlearchive/doctrine,dtao/doctrine,PolymerLabs/doctrine,PolymerLabs/doctrine,Constellation/doctrine,jonathanKingston/doctrine,googlearchive/doctrine,mysticatea/doctrine,ecomfe/doctrine2,ecomfe/doctrine2,jifeon/doctrine,mysticatea/doctrine,jifeon/doctrine,demands/doctrine