fixed matrix allocation in assignment operator (cherry picked from commit 27620fc862286e7ea766c861798127c8448691a6)
fixed matrix allocation in assignment operator
(cherry picked from commit 27620fc862286e7ea766c861798127c8448691a6)

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