Fix unnecessary GCP update on start.
Fix unnecessary GCP update on start.

Introduction of fields not exported to JSON causes comparison between
local and GCP copies to return "not equal". In fact, they are equal.

agoode/cups-connector,google/cloud-print-connector,agoode/cloud-print-connector,agoode/cloud-print-connector,avlis/cloud-print-connector,201371192/cups-connector,swills/cups-connector,agoode/cloud-print-connector,avlis/cloud-print-connector,agoode/cups-connector,swills/cups-connector,google/cloud-print-connector,agoode/cloud-print-connector,201371192/cups-connector,avlis/cloud-print-connector,google/cloud-print-connector,google/cloud-print-connector,avlis/cloud-print-connector