From B.Butler and M.Swiatlowski: fix possible crash in submerger mode due to missing protection
From B.Butler and M.Swiatlowski: fix possible crash in submerger mode due to missing protection


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@49113 27541ba8-7e3a-0410-8455-c3a389f83636

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