Check read dimension only for versions > 11. Before fNdim was a transient data member. This fixes ROOT-9693 and ROOT-9703
Check read dimension only for versions > 11. Before fNdim was a transient data member.
This fixes ROOT-9693 and ROOT-9703

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