Fixed bug with code tagging when the index related to the tag was 0 . Changed unfound index to undefined.
Fixed bug with code tagging when the index related to the tag was 0
. Changed unfound index to undefined.

RJFreund/OpenDSA,vkaravir/JSAV,RJFreund/OpenDSA,RJFreund/OpenDSA,RJFreund/OpenDSA,RJFreund/OpenDSA,RJFreund/OpenDSA,vkaravir/JSAV,RJFreund/OpenDSA,RJFreund/OpenDSA