Make sure no copy of the object is left in _dir before streaming its name.
Make sure no copy of the object is left in _dir before streaming its name.

Fixes teardown crash in tutorials/roofit/rf205_compplot.C.

agarciamontoro/root,abhinavmoudgil95/root,simonpf/root,zzxuanyuan/root,jrtomps/root,bbockelm/root,root-mirror/root,thomaskeck/root,gganis/root,Y--/root,georgtroska/root,BerserkerTroll/root,sawenzel/root,veprbl/root,thomaskeck/root,mattkretz/root,satyarth934/root,lgiommi/root,mattkretz/root,gganis/root,jrtomps/root,gganis/root,satyarth934/root,bbockelm/root,pspe/root,zzxuanyuan/root,buuck/root,thomaskeck/root,gbitzes/root,pspe/root,Y--/root,mkret2/root,buuck/root,gbitzes/root,krafczyk/root,lgiommi/root,esakellari/root,agarciamontoro/root,zzxuanyuan/root,lgiommi/root,simonpf/root,root-mirror/root,jrtomps/root,olifre/root,agarciamontoro/root,veprbl/root,buuck/root,buuck/root,jrtomps/root,bbockelm/root,karies/root,gbitzes/root,sawenzel/root,mattkretz/root,esakellari/root,jrtomps/root,davidlt/root,pspe/root,mhuwiler/rootauto,lgiommi/root,zzxuanyuan/root,Y--/root,bbockelm/root,davidlt/root,Y--/root,thomaskeck/root,CristinaCristescu/root,karies/root,agarciamontoro/root,krafczyk/root,zzxuanyuan/root,abhinavmoudgil95/root,davidlt/root,satyarth934/root,georgtroska/root,bbockelm/root,karies/root,davidlt/root,davidlt/root,simonpf/root,georgtroska/root,CristinaCristescu/root,olifre/root,sawenzel/root,davidlt/root,davidlt/root,olifre/root,beniz/root,CristinaCristescu/root,pspe/root,gganis/root,sawenzel/root,krafczyk/root,esakellari/root,georgtroska/root,beniz/root,olifre/root,veprbl/root,mattkretz/root,gganis/root,gbitzes/root,CristinaCristescu/root,gganis/root,bbockelm/root,abhinavmoudgil95/root,krafczyk/root,lgiommi/root,sawenzel/root,pspe/root,root-mirror/root,BerserkerTroll/root,zzxuanyuan/root,olifre/root,gganis/root,georgtroska/root,mattkretz/root,krafczyk/root,krafczyk/root,root-mirror/root,mkret2/root,simonpf/root,satyarth934/root,jrtomps/root,pspe/root,simonpf/root,gbitzes/root,root-mirror/root,mkret2/root,mattkretz/root,beniz/root,pspe/root,mkret2/root,jrtomps/root,simonpf/root,thomaskeck/root,pspe/root,mhuwiler/rootauto,olifre/root,thomaskeck/root,BerserkerTroll/root,esakellari/root,lgiommi/root,sawenzel/root,CristinaCristescu/root,mkret2/root,root-mirror/root,thomaskeck/root,veprbl/root,karies/root,BerserkerTroll/root,BerserkerTroll/root,satyarth934/root,davidlt/root,mkret2/root,buuck/root,CristinaCristescu/root,satyarth934/root,olifre/root,buuck/root,zzxuanyuan/root-compressor-dummy,gbitzes/root,agarciamontoro/root,davidlt/root,zzxuanyuan/root,karies/root,jrtomps/root,beniz/root,zzxuanyuan/root,agarciamontoro/root,lgiommi/root,CristinaCristescu/root,georgtroska/root,CristinaCristescu/root,zzxuanyuan/root-compressor-dummy,buuck/root,BerserkerTroll/root,abhinavmoudgil95/root,sawenzel/root,beniz/root,zzxuanyuan/root-compressor-dummy,gbitzes/root,zzxuanyuan/root-compressor-dummy,satyarth934/root,agarciamontoro/root,abhinavmoudgil95/root,veprbl/root,Y--/root,esakellari/root,Y--/root,esakellari/root,veprbl/root,root-mirror/root,mkret2/root,mhuwiler/rootauto,lgiommi/root,beniz/root,mhuwiler/rootauto,CristinaCristescu/root,pspe/root,gbitzes/root,thomaskeck/root,karies/root,zzxuanyuan/root-compressor-dummy,gbitzes/root,BerserkerTroll/root,bbockelm/root,thomaskeck/root,jrtomps/root,Y--/root,agarciamontoro/root,mhuwiler/rootauto,gganis/root,jrtomps/root,simonpf/root,krafczyk/root,gganis/root,karies/root,mhuwiler/rootauto,bbockelm/root,zzxuanyuan/root,pspe/root,lgiommi/root,bbockelm/root,veprbl/root,esakellari/root,mhuwiler/rootauto,esakellari/root,root-mirror/root,BerserkerTroll/root,beniz/root,beniz/root,krafczyk/root,karies/root,veprbl/root,jrtomps/root,CristinaCristescu/root,georgtroska/root,gbitzes/root,agarciamontoro/root,thomaskeck/root,zzxuanyuan/root,zzxuanyuan/root-compressor-dummy,karies/root,root-mirror/root,mattkretz/root,sawenzel/root,satyarth934/root,krafczyk/root,zzxuanyuan/root,Y--/root,georgtroska/root,georgtroska/root,abhinavmoudgil95/root,zzxuanyuan/root-compressor-dummy,georgtroska/root,veprbl/root,mkret2/root,pspe/root,simonpf/root,mkret2/root,karies/root,sawenzel/root,buuck/root,gganis/root,simonpf/root,mhuwiler/rootauto,sawenzel/root,veprbl/root,esakellari/root,CristinaCristescu/root,buuck/root,mhuwiler/rootauto,esakellari/root,BerserkerTroll/root,olifre/root,bbockelm/root,lgiommi/root,mattkretz/root,agarciamontoro/root,bbockelm/root,abhinavmoudgil95/root,sawenzel/root,agarciamontoro/root,mkret2/root,beniz/root,BerserkerTroll/root,veprbl/root,mattkretz/root,simonpf/root,beniz/root,zzxuanyuan/root-compressor-dummy,mhuwiler/rootauto,zzxuanyuan/root-compressor-dummy,abhinavmoudgil95/root,mkret2/root,olifre/root,krafczyk/root,karies/root,beniz/root,abhinavmoudgil95/root,davidlt/root,mattkretz/root,olifre/root,abhinavmoudgil95/root,zzxuanyuan/root-compressor-dummy,esakellari/root,krafczyk/root,gganis/root,Y--/root,Y--/root,gbitzes/root,zzxuanyuan/root-compressor-dummy,georgtroska/root,lgiommi/root,root-mirror/root,buuck/root,BerserkerTroll/root,mattkretz/root,simonpf/root,davidlt/root,abhinavmoudgil95/root,satyarth934/root,mhuwiler/rootauto,olifre/root,Y--/root,satyarth934/root,satyarth934/root,buuck/root,zzxuanyuan/root,root-mirror/root