glTF exporter: fix lamp parented to bone

io_scene_gltf2/__init__.py

@@ -15,7 +15,7 @@
 bl_info = {
     'name': 'glTF 2.0 format',
     'author': 'Julien Duroure, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein, and many external contributors',
-    "version": (1, 3, 25),
+    "version": (1, 3, 26),
     'blender': (2, 90, 0),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',

io_scene_gltf2/blender/exp/gltf2_blender_gather_nodes.py

@@ -436,7 +436,7 @@ def __get_correction_node(blender_object, export_settings):
                              correction_quaternion[3], correction_quaternion[0]]
     return gltf2_io.Node(
         camera=None,
-        children=None,
+        children=[],
         extensions=None,
         extras=None,
         matrix=None,