"Handle" sequences-in-sequences by pretending they are choices
"Handle" sequences-in-sequences by pretending they are choices

So far I've only seen <sequence minOccurs="0" maxOccurs="1"> in the wild, which
this should handle just fine.

Tjoppen/james,Tjoppen/pyjames,Tjoppen/pyjames,Tjoppen/james,Tjoppen/james,Tjoppen/pyjames