Fix case no flat field available for inspect_correction

src/toolbox_scs/routines/boz.py

@@ -68,7 +68,6 @@ class parameters():
         self.sat_level = None
         self.max_iter = None
 
-
         # temporary data
         self.arr_dark = None
         self.tid_dark = None
@@ -1403,7 +1402,7 @@ def inspect_correction(params, gain=None):
     # flat flat_field
     plane_ff = params.get_flat_field()
     if plane_ff is None:
-        plane_ff = [0.0, 0.0, 1.0, -1.0]
+        plane_ff = [0.0, 0.0, 1.0, -1.0, 0.0, 0.0, 1.0, -1.0]
     ff = compute_flat_field_correction(params.rois, plane_ff)
 
     # non linearities