I have the following simple Spatially Enabled Data Frame (SEDF): 
Should sdf.spatial.plot(map_widget=m) work for this object because it's not working for me.
An exact duplicate SEDF was created with GIS().content.import_data().query().sdf and plot DOES work for this one.
Main question is: Is calling plot() on an SEDF that was NOT created with import_data valid?