Using spaces in requested fields provides default fields instead of requested

[cassienickles]

A user noticed that when you have spaces between specified fields in a list, it goes to the default fields instead of accepting the new ones. So if fields = "reach_id, node_id, time, time_tai, time_str, lat, lon, lat_u, lon_u, river_name", it returns the default instead of these variables, but if you remove the spaces it works.