Properly include creators of last item when looking for duplicates
Properly include creators of last item when looking for duplicates

rmzelle/zotero,retorquere/zotero,rmzelle/zotero,gracile-fr/zotero,rmzelle/zotero,retorquere/zotero,gracile-fr/zotero,retorquere/zotero,gracile-fr/zotero