LON,LAT,NUMBER,STREET,FOOBAR,DEADBEEF
,-40,a,b,,
-40,,a,b,,
,,,,,
,,30,b,,
40,40,a,,,
,,,30,,,
,..........,,,,,,,,,,,

LON,LAT,NUMBER,STREET,FOOBAR,DEADBEEF
,-40,a,b,,
-40,,a,b,,
,,,,,
,,30,b,,
40,40,a,,,
,,,30,,,
,..........,,,,,,,,,,,
40,40,5, ,,

Test the case where the CSV row contains only whitespace
Test the case where the CSV row contains only whitespace
