fix(library/tactic/smt/smt_state): ematch_using should not fail when a ground fact was added but no instance
fix(library/tactic/smt/smt_state): ematch_using should not fail when a ground fact was added but no instance

fgdorais/lean,fpvandoorn/lean,Kha/lean,leanprover-community/lean,avigad/lean,Kha/lean,rlewis1988/lean,Kha/lean,Kha/lean,digama0/lean,leanprover/lean,dselsam/lean,Kha/lean,dselsam/lean,dselsam/lean,dselsam/lean,johoelzl/lean,avigad/lean,fgdorais/lean,fgdorais/lean,leodemoura/lean,leanprover-community/lean,digama0/lean,leodemoura/lean,avigad/lean,avigad/lean,johoelzl/lean,digama0/lean,fgdorais/lean,leodemoura/lean,rlewis1988/lean,leanprover/lean,fpvandoorn/lean,digama0/lean,dselsam/lean,digama0/lean,fpvandoorn/lean,fgdorais/lean,leodemoura/lean,leanprover-community/lean,leanprover-community/lean,leodemoura/lean,leodemoura/lean,Kha/lean,avigad/lean,dselsam/lean,fpvandoorn/lean,digama0/lean,fpvandoorn/lean,johoelzl/lean,fpvandoorn/lean,leanprover-community/lean,leanprover/lean,leanprover/lean,leanprover-community/lean,leanprover/lean,johoelzl/lean,rlewis1988/lean,rlewis1988/lean,avigad/lean,rlewis1988/lean,fgdorais/lean,rlewis1988/lean,leanprover/lean,johoelzl/lean,johoelzl/lean