Don't update the editor in TGFileBrowser::Update()
Don't update the editor in TGFileBrowser::Update()

TGFileBrowser::Update() might be called by a single shot timer, causing the editor to change the currently selected object.
This has been reported on the forum (https://root.cern.ch/phpBB3/viewtopic.php?f=3&t=22877)

buuck/root,karies/root,root-mirror/root,simonpf/root,gbitzes/root,olifre/root,zzxuanyuan/root,mhuwiler/rootauto,zzxuanyuan/root-compressor-dummy,buuck/root,root-mirror/root,davidlt/root,olifre/root,zzxuanyuan/root,davidlt/root,simonpf/root,abhinavmoudgil95/root,gbitzes/root,olifre/root,mhuwiler/rootauto,root-mirror/root,olifre/root,satyarth934/root,satyarth934/root,BerserkerTroll/root,gganis/root,gganis/root,root-mirror/root,satyarth934/root,karies/root,BerserkerTroll/root,gbitzes/root,agarciamontoro/root,bbockelm/root,abhinavmoudgil95/root,davidlt/root,abhinavmoudgil95/root,buuck/root,zzxuanyuan/root-compressor-dummy,satyarth934/root,satyarth934/root,davidlt/root,buuck/root,simonpf/root,agarciamontoro/root,root-mirror/root,buuck/root,beniz/root,agarciamontoro/root,simonpf/root,mhuwiler/rootauto,davidlt/root,olifre/root,bbockelm/root,karies/root,karies/root,abhinavmoudgil95/root,beniz/root,simonpf/root,abhinavmoudgil95/root,karies/root,satyarth934/root,bbockelm/root,karies/root,beniz/root,beniz/root,gbitzes/root,abhinavmoudgil95/root,davidlt/root,olifre/root,gganis/root,buuck/root,beniz/root,gganis/root,zzxuanyuan/root,zzxuanyuan/root,root-mirror/root,zzxuanyuan/root,olifre/root,zzxuanyuan/root,gbitzes/root,karies/root,root-mirror/root,agarciamontoro/root,gganis/root,davidlt/root,mhuwiler/rootauto,gbitzes/root,gganis/root,BerserkerTroll/root,agarciamontoro/root,simonpf/root,abhinavmoudgil95/root,bbockelm/root,zzxuanyuan/root,zzxuanyuan/root-compressor-dummy,zzxuanyuan/root,root-mirror/root,BerserkerTroll/root,zzxuanyuan/root-compressor-dummy,mhuwiler/rootauto,karies/root,simonpf/root,root-mirror/root,gbitzes/root,karies/root,zzxuanyuan/root-compressor-dummy,agarciamontoro/root,abhinavmoudgil95/root,olifre/root,zzxuanyuan/root,gbitzes/root,gganis/root,beniz/root,bbockelm/root,bbockelm/root,mhuwiler/rootauto,abhinavmoudgil95/root,simonpf/root,root-mirror/root,BerserkerTroll/root,beniz/root,agarciamontoro/root,davidlt/root,BerserkerTroll/root,BerserkerTroll/root,BerserkerTroll/root,mhuwiler/rootauto,buuck/root,BerserkerTroll/root,agarciamontoro/root,abhinavmoudgil95/root,abhinavmoudgil95/root,zzxuanyuan/root,satyarth934/root,bbockelm/root,bbockelm/root,beniz/root,bbockelm/root,buuck/root,buuck/root,simonpf/root,karies/root,buuck/root,satyarth934/root,mhuwiler/rootauto,simonpf/root,beniz/root,olifre/root,gbitzes/root,davidlt/root,zzxuanyuan/root-compressor-dummy,zzxuanyuan/root,agarciamontoro/root,gganis/root,gbitzes/root,zzxuanyuan/root-compressor-dummy,simonpf/root,BerserkerTroll/root,olifre/root,davidlt/root,root-mirror/root,satyarth934/root,olifre/root,zzxuanyuan/root-compressor-dummy,beniz/root,gganis/root,karies/root,gganis/root,agarciamontoro/root,zzxuanyuan/root-compressor-dummy,zzxuanyuan/root-compressor-dummy,mhuwiler/rootauto,bbockelm/root,bbockelm/root,agarciamontoro/root,buuck/root,BerserkerTroll/root,davidlt/root,beniz/root,gbitzes/root,satyarth934/root,gganis/root,satyarth934/root,mhuwiler/rootauto,zzxuanyuan/root-compressor-dummy,mhuwiler/rootauto,zzxuanyuan/root