json: correctly calculate object start when ConvertToJSON
json: correctly calculate object start when ConvertToJSON

Signed-off-by: Bertrand Bellenot <6715f273cb2881a3bfbd56f899a7173358fb0b89@cern.ch>

thomaskeck/root,thomaskeck/root,agarciamontoro/root,mhuwiler/rootauto,georgtroska/root,mhuwiler/rootauto,Y--/root,satyarth934/root,gganis/root,bbockelm/root,mhuwiler/rootauto,karies/root,bbockelm/root,mhuwiler/rootauto,zzxuanyuan/root-compressor-dummy,pspe/root,abhinavmoudgil95/root,thomaskeck/root,davidlt/root,bbockelm/root,beniz/root,mhuwiler/rootauto,olifre/root,olifre/root,gbitzes/root,zzxuanyuan/root,georgtroska/root,gganis/root,georgtroska/root,zzxuanyuan/root-compressor-dummy,bbockelm/root,beniz/root,BerserkerTroll/root,Y--/root,BerserkerTroll/root,thomaskeck/root,karies/root,satyarth934/root,olifre/root,satyarth934/root,pspe/root,davidlt/root,bbockelm/root,agarciamontoro/root,buuck/root,gbitzes/root,davidlt/root,beniz/root,buuck/root,thomaskeck/root,zzxuanyuan/root-compressor-dummy,buuck/root,pspe/root,pspe/root,simonpf/root,olifre/root,satyarth934/root,beniz/root,davidlt/root,BerserkerTroll/root,agarciamontoro/root,georgtroska/root,gbitzes/root,gganis/root,olifre/root,agarciamontoro/root,mhuwiler/rootauto,davidlt/root,gbitzes/root,thomaskeck/root,lgiommi/root,beniz/root,gbitzes/root,mhuwiler/rootauto,pspe/root,karies/root,agarciamontoro/root,pspe/root,simonpf/root,satyarth934/root,simonpf/root,davidlt/root,gganis/root,zzxuanyuan/root,beniz/root,Y--/root,georgtroska/root,pspe/root,simonpf/root,zzxuanyuan/root,abhinavmoudgil95/root,agarciamontoro/root,satyarth934/root,gganis/root,beniz/root,davidlt/root,davidlt/root,buuck/root,gbitzes/root,zzxuanyuan/root-compressor-dummy,abhinavmoudgil95/root,beniz/root,BerserkerTroll/root,BerserkerTroll/root,gganis/root,zzxuanyuan/root,abhinavmoudgil95/root,thomaskeck/root,abhinavmoudgil95/root,abhinavmoudgil95/root,BerserkerTroll/root,agarciamontoro/root,georgtroska/root,bbockelm/root,georgtroska/root,mhuwiler/rootauto,zzxuanyuan/root-compressor-dummy,olifre/root,olifre/root,abhinavmoudgil95/root,zzxuanyuan/root-compressor-dummy,simonpf/root,buuck/root,olifre/root,karies/root,karies/root,root-mirror/root,satyarth934/root,zzxuanyuan/root,root-mirror/root,buuck/root,beniz/root,davidlt/root,lgiommi/root,BerserkerTroll/root,thomaskeck/root,zzxuanyuan/root,Y--/root,root-mirror/root,simonpf/root,abhinavmoudgil95/root,root-mirror/root,georgtroska/root,bbockelm/root,simonpf/root,gbitzes/root,gbitzes/root,Y--/root,karies/root,karies/root,agarciamontoro/root,gganis/root,zzxuanyuan/root-compressor-dummy,zzxuanyuan/root-compressor-dummy,karies/root,olifre/root,Y--/root,root-mirror/root,buuck/root,BerserkerTroll/root,bbockelm/root,BerserkerTroll/root,buuck/root,BerserkerTroll/root,karies/root,lgiommi/root,lgiommi/root,Y--/root,zzxuanyuan/root,zzxuanyuan/root,root-mirror/root,mhuwiler/rootauto,karies/root,bbockelm/root,davidlt/root,karies/root,bbockelm/root,satyarth934/root,beniz/root,root-mirror/root,agarciamontoro/root,georgtroska/root,zzxuanyuan/root,zzxuanyuan/root-compressor-dummy,Y--/root,thomaskeck/root,zzxuanyuan/root,simonpf/root,gganis/root,satyarth934/root,lgiommi/root,root-mirror/root,lgiommi/root,bbockelm/root,lgiommi/root,Y--/root,zzxuanyuan/root-compressor-dummy,zzxuanyuan/root-compressor-dummy,abhinavmoudgil95/root,gbitzes/root,simonpf/root,Y--/root,thomaskeck/root,lgiommi/root,olifre/root,lgiommi/root,gbitzes/root,beniz/root,buuck/root,lgiommi/root,georgtroska/root,gganis/root,buuck/root,root-mirror/root,georgtroska/root,satyarth934/root,zzxuanyuan/root,mhuwiler/rootauto,lgiommi/root,pspe/root,abhinavmoudgil95/root,gbitzes/root,zzxuanyuan/root,pspe/root,root-mirror/root,davidlt/root,olifre/root,Y--/root,simonpf/root,pspe/root,root-mirror/root,simonpf/root,mhuwiler/rootauto,buuck/root,BerserkerTroll/root,abhinavmoudgil95/root,satyarth934/root,gganis/root,agarciamontoro/root,agarciamontoro/root,pspe/root,gganis/root