[ntuple] fix double free in raw page source
[ntuple] fix double free in raw page source

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