fix 7MB/revision memory leak
fix 7MB/revision memory leak

dphiffer/urbit,dphiffer/urbit,jpt4/urbit,galenwp/urbit,philippeback/urbit,8l/urbit,jpt4/urbit,chc4/urbit,burtonsamograd/urbit,Gunga/urbit,daveloyall/urbit,philipcmonk/urbit,daveloyall/urbit,burtonsamograd/urbit,Gunga/urbit,daveloyall/urbit,chc4/urbit,dcow/urbit,philipcmonk/urbit,philipcmonk/urbit,bvschwartz/urbit,urbit/archaeology-factor,philipcmonk/urbit,burtonsamograd/urbit,philipcmonk/urbit,rsaarelm/urbit,jpt4/urbit,chc4/urbit,bollu/urbit,yebyen/urbit,yebyen/urbit,galenwp/urbit,dphiffer/urbit,bollu/urbit,urbit/archaeology-factor,philippeback/urbit,bvschwartz/urbit,burtonsamograd/urbit,yebyen/urbit,chc4/urbit,8l/urbit,dphiffer/urbit,bvschwartz/urbit,galenwp/urbit,rsaarelm/urbit,8l/urbit,philippeback/urbit,burtonsamograd/urbit,Gunga/urbit,rsaarelm/urbit,yebyen/urbit,dphiffer/urbit,urbit/archaeology-factor,galenwp/urbit,dcow/urbit,jpt4/urbit,bvschwartz/urbit,Gunga/urbit,dcow/urbit,daveloyall/urbit,bvschwartz/urbit,chc4/urbit,urbit/archaeology-factor,jpt4/urbit,bollu/urbit,8l/urbit,bollu/urbit,philipcmonk/urbit,chc4/urbit,yebyen/urbit,burtonsamograd/urbit,bollu/urbit,yebyen/urbit,8l/urbit,bollu/urbit,daveloyall/urbit,galenwp/urbit,urbit/archaeology-factor,philippeback/urbit,dphiffer/urbit,philipcmonk/urbit,philippeback/urbit,galenwp/urbit,Gunga/urbit,bollu/urbit,chc4/urbit,rsaarelm/urbit,yebyen/urbit,bvschwartz/urbit,dphiffer/urbit,rsaarelm/urbit,galenwp/urbit,8l/urbit,burtonsamograd/urbit,dcow/urbit,jpt4/urbit,Gunga/urbit,burtonsamograd/urbit,bollu/urbit,dphiffer/urbit,dcow/urbit,urbit/archaeology-factor,galenwp/urbit,8l/urbit,8l/urbit,burtonsamograd/urbit,rsaarelm/urbit,daveloyall/urbit,philippeback/urbit,bvschwartz/urbit,philipcmonk/urbit,yebyen/urbit,rsaarelm/urbit,8l/urbit,rsaarelm/urbit,philipcmonk/urbit,daveloyall/urbit,dcow/urbit,bvschwartz/urbit,urbit/archaeology-factor,yebyen/urbit,urbit/archaeology-factor,dcow/urbit,urbit/archaeology-factor,chc4/urbit,Gunga/urbit,rsaarelm/urbit,chc4/urbit,daveloyall/urbit,dphiffer/urbit,bvschwartz/urbit,Gunga/urbit,Gunga/urbit,8l/urbit,yebyen/urbit,jpt4/urbit,bollu/urbit,jpt4/urbit,philippeback/urbit,chc4/urbit,daveloyall/urbit,galenwp/urbit,jpt4/urbit,dcow/urbit,philippeback/urbit,rsaarelm/urbit,philippeback/urbit,galenwp/urbit,burtonsamograd/urbit,dcow/urbit,daveloyall/urbit,philippeback/urbit,bollu/urbit,urbit/archaeology-factor,dphiffer/urbit,Gunga/urbit,bvschwartz/urbit,jpt4/urbit,philipcmonk/urbit