Protect zero lat/lng tests against "0" strings
Protect zero lat/lng tests against "0" strings

tectronics/election-gadgets.egypt,geary/election-gadgets.egypt,geary/election-gadgets-egypt,tectronics/election-gadgets.egypt,geary/election-gadgets.egypt-staging,tectronics/election-gadgets.egypt,tectronics/election-gadgets.egypt-staging,geary/election-gadgets.egypt,geary/election-gadgets.egypt-staging,tectronics/election-gadgets.egypt-staging,tectronics/election-gadgets.egypt-staging,geary/election-gadgets.egypt,geary/election-gadgets-egypt,geary/election-gadgets-egypt.staging,geary/election-gadgets-egypt,geary/election-gadgets.egypt-staging,geary/election-gadgets.egypt,geary/election-gadgets-egypt.staging,geary/election-gadgets.egypt,geary/election-gadgets-egypt,geary/election-gadgets-egypt.staging,tectronics/election-gadgets.egypt-staging,geary/election-gadgets-egypt.staging,tectronics/election-gadgets.egypt,geary/election-gadgets.egypt-staging,geary/election-gadgets.egypt-staging,geary/election-gadgets-egypt,tectronics/election-gadgets.egypt,geary/election-gadgets-egypt.staging,tectronics/election-gadgets.egypt-staging