Handle a rule with empty pattern in cs-parser
Handle a rule with empty pattern in cs-parser

AmeBel/opencog,misgeatgit/opencog,AmeBel/opencog,misgeatgit/opencog,andre-senna/opencog,andre-senna/opencog,andre-senna/opencog,AmeBel/opencog,misgeatgit/opencog,misgeatgit/opencog,misgeatgit/opencog,andre-senna/opencog,andre-senna/opencog,misgeatgit/opencog,andre-senna/opencog,AmeBel/opencog,AmeBel/opencog,misgeatgit/opencog,andre-senna/opencog,misgeatgit/opencog,AmeBel/opencog,misgeatgit/opencog,AmeBel/opencog