fix(emacs/lean-debug): disable undo in lean-debug buffer
fix(emacs/lean-debug): disable undo in lean-debug buffer

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