[gimp] Issue #1119 - Unable to give a layer group as a parameter to a python script

[Ell <ell src gnome org>]

commit b295a33aafe122f318e591546c1a2a9217fd19af
Author: Ell <ell_se yahoo com>
Date:   Sat Jan 26 15:55:52 2019 -0500

    Issue #1119 - Unable to give a layer group as a parameter to a python script
    
    Pickle gimp.GroupLayer the same way we pickle gimp.Layer, so that
    layer-group parameters can be properly saved.
    
    All credit goes to Ofnuts :)

 plug-ins/pygimp/gimpshelf.py | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/plug-ins/pygimp/gimpshelf.py b/plug-ins/pygimp/gimpshelf.py
index 455c757b0d..999d319579 100644
--- a/plug-ins/pygimp/gimpshelf.py
+++ b/plug-ins/pygimp/gimpshelf.py
@@ -53,11 +53,12 @@ def _display_id(obj):
 def _vectors_id(obj):
     return gimp._id2vectors, (int(obj.ID),)
 
-copy_reg.pickle(gimp.Image,   _image_id,    gimp._id2image)
-copy_reg.pickle(gimp.Layer,   _drawable_id, gimp._id2drawable)
-copy_reg.pickle(gimp.Channel, _drawable_id, gimp._id2drawable)
-copy_reg.pickle(gimp.Display, _display_id,  gimp._id2display)
-copy_reg.pickle(gimp.Vectors, _vectors_id,  gimp._id2vectors)
+copy_reg.pickle(gimp.Image,      _image_id,    gimp._id2image)
+copy_reg.pickle(gimp.Layer,      _drawable_id, gimp._id2drawable)
+copy_reg.pickle(gimp.GroupLayer, _drawable_id, gimp._id2drawable)
+copy_reg.pickle(gimp.Channel,    _drawable_id, gimp._id2drawable)
+copy_reg.pickle(gimp.Display,    _display_id,  gimp._id2display)
+copy_reg.pickle(gimp.Vectors,    _vectors_id,  gimp._id2vectors)
 
 del copy_reg, _image_id, _drawable_id, _display_id, _vectors_id