Bug fix for #968
Bug fix for #968

This used to work before, but only due to a bug in the old code.
The new code records all groundings, so make use of that.

yantrabuddhi/atomspace,yantrabuddhi/atomspace,rTreutlein/atomspace,inflector/atomspace,inflector/atomspace,misgeatgit/atomspace,ArvinPan/atomspace,rTreutlein/atomspace,ArvinPan/atomspace,misgeatgit/atomspace,AmeBel/atomspace,ArvinPan/atomspace,yantrabuddhi/atomspace,rTreutlein/atomspace,AmeBel/atomspace,AmeBel/atomspace,misgeatgit/atomspace,misgeatgit/atomspace,inflector/atomspace,rTreutlein/atomspace,inflector/atomspace,ArvinPan/atomspace,misgeatgit/atomspace,yantrabuddhi/atomspace,AmeBel/atomspace,rTreutlein/atomspace,yantrabuddhi/atomspace,inflector/atomspace,AmeBel/atomspace