Fix leak in NanAssignPersistent
Fix leak in NanAssignPersistent

thejinx0r/nan,mscdex/nan,gastrodia/nan,durai145/nan,evanlucas/nan,thefourtheye/nan,saper/nan,eljefedelrodeodeljefe/nan,fleg/nan,hmalphettes/nan,gagern/nan,eljefedelrodeodeljefe/nan,eljefedelrodeodeljefe/nan,ipmobiletech/nan,sanemat/nan,gastrodia/nan,durai145/nan,sanemat/nan,thejinx0r/nan,guymguym/nan,gagern/nan,gastrodia/nan,lovell/nan,gastrodia/nan,evanlucas/nan,noahjs/nan,LinusU/nan,sanemat/nan,sesh-kebab/nan,evanlucas/nan,Jonekee/nan,sanemat/nan,ipmobiletech/nan,mscdex/nan,Jonekee/nan,mikolalysenko/nan,guymguym/nan,nodejs/nan,thefourtheye/nan,sesh-kebab/nan,gagern/nan,LinusU/nan,lovell/nan,fleg/nan,thejinx0r/nan,addaleax/nan,noahjs/nan,fleg/nan,guymguym/nan,durai145/nan,noahjs/nan,sesh-kebab/nan,saper/nan,lovell/nan,mikolalysenko/nan,thejinx0r/nan,noahjs/nan,nodejs/nan,mikolalysenko/nan,LinusU/nan,hmalphettes/nan,hmalphettes/nan,ipmobiletech/nan,addaleax/nan,Jonekee/nan,mikolalysenko/nan,saper/nan,thefourtheye/nan,durai145/nan,ipmobiletech/nan,sesh-kebab/nan,Jonekee/nan,evanlucas/nan,eljefedelrodeodeljefe/nan,thefourtheye/nan,saper/nan,LinusU/nan,fleg/nan,guymguym/nan,addaleax/nan,hmalphettes/nan,mscdex/nan,nodejs/nan,mscdex/nan,lovell/nan,nodejs/nan,addaleax/nan