glTF exporter: alphabetically sorting of exported animation

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, 1, 19),
+    "version": (1, 1, 20),
     'blender': (2, 81, 6),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',

io_scene_gltf2/blender/exp/gltf2_blender_gather_animations.py

@@ -231,6 +231,8 @@ def __get_blender_actions(blender_object: bpy.types.Object,
 
     # Remove duplicate actions.
     blender_actions = list(set(blender_actions))
+    # sort animations alphabetically (case insensitive) so they have a defined order and match Blender's Action list
+    blender_actions.sort(key = lambda a: a.name.lower())
 
     return [(blender_action, blender_tracks[blender_action.name]) for blender_action in blender_actions]