also scale ivar (this is a very minor correction because point_source_correction is normalized)

Author: julienguy

py/desispec/fluxcalibration.py

@@ -972,6 +972,7 @@ def add_margin_3d_dim2(iarray,margin) :
 
     #- Apply point source flux correction
     tframe.flux *= point_source_correction[:,None]
+    tframe.flux /= (point_source_correction[:,None])**2
 
     #- Pull out just the standard stars for convenience, but keep the
     #- full frame of spectra around because we will later need to convolved