fix(library/handle): handle double close
fix(library/handle): handle double close

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