Update itembox.xml
Update itembox.xml

Corrects a tiny bug where pressing minus button to remove an unsaved creator row creates incorrect behaviour in the plus button in preceding row. Done in preparation for a fix I have locally for issue #251.  Please advise if I have your preferred workflow wrong.

hoehnp/zotero,LinuxMercedes/zotero,retorquere/zotero,rmzelle/zotero,gracile-fr/zotero,LinuxMercedes/zotero,retorquere/zotero,robamler/zotero,aurimasv/zotero,retorquere/zotero,LinuxMercedes/zotero,adunning/zotero,egh/zotero,rmzelle/zotero,robamler/zotero,fbennett/zotero,gracile-fr/zotero,egh/zotero,adunning/zotero,hoehnp/zotero,gracile-fr/zotero,adunning/zotero,sendecomp/zotero,sendecomp/zotero,hoehnp/zotero,rmzelle/zotero,sendecomp/zotero,egh/zotero,robamler/zotero