[TVMA] CV - Fix crash when not using an output file
[TVMA] CV - Fix crash when not using an output file

olifre/root,root-mirror/root,root-mirror/root,karies/root,olifre/root,olifre/root,olifre/root,olifre/root,karies/root,karies/root,root-mirror/root,olifre/root,root-mirror/root,karies/root,karies/root,root-mirror/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,karies/root,root-mirror/root,olifre/root,karies/root,root-mirror/root,karies/root,olifre/root,root-mirror/root,olifre/root,karies/root,root-mirror/root,olifre/root,karies/root