fix #4434: crash when storing filtered list
fix #4434: crash when storing filtered list

Huertix/cgeo,cgeo/cgeo,auricgoldfinger/cgeo,schwabe/cgeo,rsudev/c-geo-opensource,vishwakulkarni/cgeo,matej116/cgeo,vishwakulkarni/cgeo,Huertix/cgeo,kumy/cgeo,kumy/cgeo,rsudev/c-geo-opensource,marco-dev/c-geo-opensource,samueltardieu/cgeo,brok85/cgeo,xiaoyanit/cgeo,SammysHP/cgeo,auricgoldfinger/cgeo,mucek4/cgeo,yummy222/cgeo,superspindel/cgeo,auricgoldfinger/cgeo,marco-dev/c-geo-opensource,schwabe/cgeo,samueltardieu/cgeo,tobiasge/cgeo,Huertix/cgeo,samueltardieu/cgeo,mucek4/cgeo,madankb/cgeo,madankb/cgeo,Bananeweizen/cgeo,KublaikhanGeek/cgeo,ThibaultR/cgeo,rsudev/c-geo-opensource,kumy/cgeo,madankb/cgeo,pstorch/cgeo,matej116/cgeo,ThibaultR/cgeo,lewurm/cgeo,pstorch/cgeo,ThibaultR/cgeo,brok85/cgeo,cgeo/cgeo,SammysHP/cgeo,KublaikhanGeek/cgeo,xiaoyanit/cgeo,cgeo/cgeo,lewurm/cgeo,S-Bartfast/cgeo,pstorch/cgeo,superspindel/cgeo,schwabe/cgeo,schwabe/cgeo,lewurm/cgeo,xiaoyanit/cgeo,Bananeweizen/cgeo,vishwakulkarni/cgeo,S-Bartfast/cgeo,mucek4/cgeo,marco-dev/c-geo-opensource,matej116/cgeo,SammysHP/cgeo,tobiasge/cgeo,yummy222/cgeo,S-Bartfast/cgeo,yummy222/cgeo,brok85/cgeo,cgeo/cgeo,KublaikhanGeek/cgeo,superspindel/cgeo,Bananeweizen/cgeo,tobiasge/cgeo