utf8: prevent zalgoDOS
utf8: prevent zalgoDOS

Former-commit-id: 20a69bdb48aa19ecc96b030bb5fb1858fed1f8b1 [formerly ebe85b83bdde1aeef3f9b6f7223c8911b1682f25]
Former-commit-id: 9a2fc98101be66925c05223f1749aea2a20f7baf
torhve/ivar2,torhve/ivar2,torhve/ivar2,haste/ivar2