In theory Zabbix templates will always have both vendor name and version. Some time in the future and after ZBXNEXT-9827 is implemented, users will be able to create their own templates and there is no 100% guarantee those both fields will be filled. If only one field is filled, the other can produce a runtime error. In this case vendor had version, but name was forgotten:

Undefined array key "name" [zabbix.php:17 -> require_once() -> ZBase->run() -> ZBase->processRequest() -> ZBase->processResponseFinal() -> CView->getOutput() -> include() -> CConfigFile->{closure}() in app\views\template.edit.php:156]