[TDF] Allow proper re-usage of TDataFrameValues
[TDF] Allow proper re-usage of TDataFrameValues

Before this fix TDataFrame could attempt to re-use invalidated
TTreeReader{Value,Array}s in certain conditions.

beniz/root,bbockelm/root,zzxuanyuan/root-compressor-dummy,olifre/root,satyarth934/root,davidlt/root,agarciamontoro/root,bbockelm/root,root-mirror/root,zzxuanyuan/root,agarciamontoro/root,agarciamontoro/root,satyarth934/root,karies/root,beniz/root,satyarth934/root,bbockelm/root,davidlt/root,karies/root,bbockelm/root,zzxuanyuan/root,satyarth934/root,mhuwiler/rootauto,davidlt/root,BerserkerTroll/root,olifre/root,beniz/root,olifre/root,buuck/root,mhuwiler/rootauto,simonpf/root,satyarth934/root,olifre/root,mhuwiler/rootauto,zzxuanyuan/root-compressor-dummy,simonpf/root,zzxuanyuan/root,beniz/root,davidlt/root,zzxuanyuan/root,buuck/root,karies/root,simonpf/root,satyarth934/root,bbockelm/root,BerserkerTroll/root,karies/root,BerserkerTroll/root,simonpf/root,root-mirror/root,zzxuanyuan/root,BerserkerTroll/root,mhuwiler/rootauto,zzxuanyuan/root-compressor-dummy,karies/root,bbockelm/root,BerserkerTroll/root,buuck/root,buuck/root,beniz/root,agarciamontoro/root,agarciamontoro/root,mhuwiler/rootauto,satyarth934/root,satyarth934/root,root-mirror/root,karies/root,zzxuanyuan/root,buuck/root,BerserkerTroll/root,olifre/root,zzxuanyuan/root,karies/root,bbockelm/root,davidlt/root,buuck/root,zzxuanyuan/root,buuck/root,mhuwiler/rootauto,bbockelm/root,mhuwiler/rootauto,mhuwiler/rootauto,buuck/root,BerserkerTroll/root,root-mirror/root,BerserkerTroll/root,zzxuanyuan/root-compressor-dummy,karies/root,mhuwiler/rootauto,zzxuanyuan/root-compressor-dummy,mhuwiler/rootauto,simonpf/root,zzxuanyuan/root-compressor-dummy,olifre/root,bbockelm/root,zzxuanyuan/root,davidlt/root,karies/root,zzxuanyuan/root,BerserkerTroll/root,zzxuanyuan/root-compressor-dummy,beniz/root,agarciamontoro/root,root-mirror/root,olifre/root,simonpf/root,beniz/root,zzxuanyuan/root,root-mirror/root,beniz/root,simonpf/root,satyarth934/root,zzxuanyuan/root-compressor-dummy,BerserkerTroll/root,simonpf/root,BerserkerTroll/root,buuck/root,agarciamontoro/root,beniz/root,agarciamontoro/root,agarciamontoro/root,simonpf/root,olifre/root,davidlt/root,zzxuanyuan/root-compressor-dummy,davidlt/root,root-mirror/root,mhuwiler/rootauto,simonpf/root,karies/root,bbockelm/root,root-mirror/root,davidlt/root,olifre/root,satyarth934/root,zzxuanyuan/root-compressor-dummy,root-mirror/root,buuck/root,olifre/root,bbockelm/root,beniz/root,zzxuanyuan/root,root-mirror/root,davidlt/root,satyarth934/root,olifre/root,simonpf/root,root-mirror/root,beniz/root,agarciamontoro/root,agarciamontoro/root,karies/root,buuck/root,zzxuanyuan/root-compressor-dummy,davidlt/root