chromium/third_party/libxml/fuzz/seed_corpus/2526e9fd2e7dc170f96a1138764506f28d213770

<card xmlns="http://www.example.com"
     xmlns:a="http://www.example.com/a" a:foo="works"
     xmlns:b="http://www.example.com" b:foo="fails">
   This should fail
</card>