Fix a memory leak in assignment operator. The functions objects in the list of functions were not deleted
Fix a memory leak in assignment operator. The functions objects in the list of functions were not deleted

arch1tect0r/root,mkret2/root,Duraznos/root,smarinac/root,vukasinmilosevic/root,lgiommi/root,davidlt/root,evgeny-boger/root,mattkretz/root,abhinavmoudgil95/root,mattkretz/root,mattkretz/root,omazapa/root-old,esakellari/my_root_for_test,satyarth934/root,cxx-hep/root-cern,Y--/root,karies/root,olifre/root,sbinet/cxx-root,mhuwiler/rootauto,georgtroska/root,BerserkerTroll/root,karies/root,beniz/root,georgtroska/root,georgtroska/root,pspe/root,simonpf/root,jrtomps/root,bbockelm/root,sirinath/root,krafczyk/root,satyarth934/root,omazapa/root,zzxuanyuan/root-compressor-dummy,lgiommi/root,sbinet/cxx-root,sawenzel/root,vukasinmilosevic/root,vukasinmilosevic/root,agarciamontoro/root,zzxuanyuan/root-compressor-dummy,krafczyk/root,alexschlueter/cern-root,root-mirror/root,dfunke/root,Duraznos/root,omazapa/root,esakellari/my_root_for_test,satyarth934/root,mkret2/root,omazapa/root,mkret2/root,olifre/root,buuck/root,zzxuanyuan/root,sirinath/root,arch1tect0r/root,Duraznos/root,arch1tect0r/root,abhinavmoudgil95/root,zzxuanyuan/root,bbockelm/root,smarinac/root,karies/root,olifre/root,omazapa/root-old,jrtomps/root,Y--/root,omazapa/root,sbinet/cxx-root,0x0all/ROOT,Duraznos/root,sawenzel/root,esakellari/my_root_for_test,beniz/root,mhuwiler/rootauto,veprbl/root,Y--/root,nilqed/root,olifre/root,CristinaCristescu/root,simonpf/root,omazapa/root-old,olifre/root,bbockelm/root,georgtroska/root,evgeny-boger/root,mhuwiler/rootauto,zzxuanyuan/root,abhinavmoudgil95/root,simonpf/root,esakellari/my_root_for_test,gbitzes/root,sirinath/root,BerserkerTroll/root,perovic/root,georgtroska/root,smarinac/root,agarciamontoro/root,bbockelm/root,abhinavmoudgil95/root,gganis/root,omazapa/root-old,krafczyk/root,zzxuanyuan/root,0x0all/ROOT,mhuwiler/rootauto,gbitzes/root,zzxuanyuan/root-compressor-dummy,lgiommi/root,sawenzel/root,jrtomps/root,omazapa/root,sirinath/root,sirinath/root,sirinath/root,simonpf/root,Duraznos/root,veprbl/root,sirinath/root,0x0all/ROOT,krafczyk/root,esakellari/root,sbinet/cxx-root,perovic/root,buuck/root,esakellari/my_root_for_test,0x0all/ROOT,pspe/root,cxx-hep/root-cern,satyarth934/root,nilqed/root,veprbl/root,perovic/root,olifre/root,alexschlueter/cern-root,mkret2/root,bbockelm/root,evgeny-boger/root,CristinaCristescu/root,sirinath/root,esakellari/root,esakellari/root,sbinet/cxx-root,BerserkerTroll/root,esakellari/my_root_for_test,alexschlueter/cern-root,abhinavmoudgil95/root,omazapa/root,esakellari/my_root_for_test,Duraznos/root,karies/root,sawenzel/root,jrtomps/root,Y--/root,root-mirror/root,cxx-hep/root-cern,davidlt/root,mattkretz/root,dfunke/root,mhuwiler/rootauto,gbitzes/root,nilqed/root,evgeny-boger/root,davidlt/root,arch1tect0r/root,pspe/root,BerserkerTroll/root,Duraznos/root,perovic/root,Duraznos/root,sbinet/cxx-root,veprbl/root,sawenzel/root,gganis/root,mhuwiler/rootauto,karies/root,karies/root,sawenzel/root,karies/root,zzxuanyuan/root,veprbl/root,satyarth934/root,agarciamontoro/root,alexschlueter/cern-root,mhuwiler/rootauto,BerserkerTroll/root,zzxuanyuan/root-compressor-dummy,zzxuanyuan/root-compressor-dummy,alexschlueter/cern-root,zzxuanyuan/root,evgeny-boger/root,mkret2/root,esakellari/root,mhuwiler/rootauto,gbitzes/root,perovic/root,zzxuanyuan/root-compressor-dummy,BerserkerTroll/root,CristinaCristescu/root,jrtomps/root,abhinavmoudgil95/root,thomaskeck/root,beniz/root,gbitzes/root,agarciamontoro/root,gganis/root,georgtroska/root,pspe/root,gbitzes/root,root-mirror/root,agarciamontoro/root,root-mirror/root,sirinath/root,gbitzes/root,sbinet/cxx-root,bbockelm/root,sawenzel/root,satyarth934/root,thomaskeck/root,pspe/root,buuck/root,arch1tect0r/root,dfunke/root,nilqed/root,dfunke/root,georgtroska/root,omazapa/root-old,bbockelm/root,thomaskeck/root,esakellari/root,vukasinmilosevic/root,buuck/root,bbockelm/root,mkret2/root,lgiommi/root,dfunke/root,zzxuanyuan/root-compressor-dummy,vukasinmilosevic/root,omazapa/root-old,lgiommi/root,root-mirror/root,davidlt/root,0x0all/ROOT,thomaskeck/root,mattkretz/root,davidlt/root,esakellari/my_root_for_test,mhuwiler/rootauto,olifre/root,thomaskeck/root,evgeny-boger/root,esakellari/root,smarinac/root,root-mirror/root,georgtroska/root,lgiommi/root,simonpf/root,gganis/root,CristinaCristescu/root,esakellari/my_root_for_test,omazapa/root,gbitzes/root,Y--/root,cxx-hep/root-cern,0x0all/ROOT,smarinac/root,Duraznos/root,zzxuanyuan/root,perovic/root,jrtomps/root,veprbl/root,nilqed/root,dfunke/root,sbinet/cxx-root,cxx-hep/root-cern,jrtomps/root,bbockelm/root,zzxuanyuan/root-compressor-dummy,beniz/root,perovic/root,mkret2/root,evgeny-boger/root,Y--/root,abhinavmoudgil95/root,thomaskeck/root,BerserkerTroll/root,krafczyk/root,BerserkerTroll/root,zzxuanyuan/root-compressor-dummy,mkret2/root,krafczyk/root,beniz/root,veprbl/root,veprbl/root,omazapa/root,abhinavmoudgil95/root,zzxuanyuan/root-compressor-dummy,pspe/root,buuck/root,davidlt/root,arch1tect0r/root,omazapa/root-old,Y--/root,vukasinmilosevic/root,cxx-hep/root-cern,smarinac/root,pspe/root,omazapa/root-old,nilqed/root,evgeny-boger/root,esakellari/my_root_for_test,lgiommi/root,arch1tect0r/root,davidlt/root,mattkretz/root,gbitzes/root,Y--/root,zzxuanyuan/root-compressor-dummy,krafczyk/root,omazapa/root,mhuwiler/rootauto,mhuwiler/rootauto,simonpf/root,CristinaCristescu/root,beniz/root,dfunke/root,zzxuanyuan/root,nilqed/root,gganis/root,jrtomps/root,davidlt/root,lgiommi/root,CristinaCristescu/root,agarciamontoro/root,sbinet/cxx-root,sawenzel/root,satyarth934/root,arch1tect0r/root,evgeny-boger/root,perovic/root,simonpf/root,alexschlueter/cern-root,veprbl/root,karies/root,sbinet/cxx-root,thomaskeck/root,CristinaCristescu/root,lgiommi/root,buuck/root,smarinac/root,mattkretz/root,omazapa/root-old,agarciamontoro/root,olifre/root,esakellari/root,nilqed/root,zzxuanyuan/root,vukasinmilosevic/root,lgiommi/root,smarinac/root,perovic/root,beniz/root,root-mirror/root,smarinac/root,esakellari/root,simonpf/root,Y--/root,sawenzel/root,gganis/root,omazapa/root,krafczyk/root,evgeny-boger/root,zzxuanyuan/root,krafczyk/root,beniz/root,buuck/root,agarciamontoro/root,omazapa/root,gganis/root,perovic/root,buuck/root,gbitzes/root,mattkretz/root,beniz/root,cxx-hep/root-cern,zzxuanyuan/root,CristinaCristescu/root,davidlt/root,thomaskeck/root,abhinavmoudgil95/root,olifre/root,satyarth934/root,root-mirror/root,esakellari/root,olifre/root,root-mirror/root,vukasinmilosevic/root,simonpf/root,BerserkerTroll/root,smarinac/root,georgtroska/root,nilqed/root,root-mirror/root,dfunke/root,satyarth934/root,jrtomps/root,sirinath/root,karies/root,thomaskeck/root,CristinaCristescu/root,agarciamontoro/root,CristinaCristescu/root,sawenzel/root,Y--/root,thomaskeck/root,georgtroska/root,krafczyk/root,gganis/root,davidlt/root,simonpf/root,veprbl/root,bbockelm/root,0x0all/ROOT,BerserkerTroll/root,gbitzes/root,arch1tect0r/root,evgeny-boger/root,mkret2/root,esakellari/root,vukasinmilosevic/root,dfunke/root,vukasinmilosevic/root,pspe/root,buuck/root,mkret2/root,mkret2/root,mattkretz/root,Duraznos/root,gganis/root,0x0all/ROOT,simonpf/root,esakellari/root,pspe/root,olifre/root,davidlt/root,vukasinmilosevic/root,gganis/root,mattkretz/root,sirinath/root,bbockelm/root,agarciamontoro/root,abhinavmoudgil95/root,omazapa/root-old,alexschlueter/cern-root,CristinaCristescu/root,georgtroska/root,arch1tect0r/root,dfunke/root,pspe/root,Duraznos/root,buuck/root,omazapa/root-old,nilqed/root,jrtomps/root,jrtomps/root,beniz/root,sbinet/cxx-root,krafczyk/root,beniz/root,dfunke/root,root-mirror/root,satyarth934/root,buuck/root,sawenzel/root,BerserkerTroll/root,pspe/root,karies/root,veprbl/root,cxx-hep/root-cern,agarciamontoro/root,perovic/root,satyarth934/root,Y--/root,lgiommi/root,0x0all/ROOT,nilqed/root,zzxuanyuan/root,karies/root,arch1tect0r/root,abhinavmoudgil95/root,gganis/root,mattkretz/root