Fix T53065: stupid animation linked to nothing in FBX file broke import.

Referenced by issue #53065, fbx import fails in some cases with AttributeError when id_data.type is checked on None object

io_scene_fbx/__init__.py

@@ -21,7 +21,7 @@
 bl_info = {
     "name": "FBX format",
     "author": "Campbell Barton, Bastien Montagne, Jens Restemeier",
-    "version": (3, 7, 14),
+    "version": (3, 7, 15),
     "blender": (2, 79, 1),
     "location": "File > Import-Export",
     "description": "FBX IO meshes, UV's, vertex colors, materials, textures, cameras, lamps and actions",

io_scene_fbx/import_fbx.py

@@ -2801,7 +2801,7 @@ def load(operator, context, filepath="",
                     if lnk_prop in {b'Lcl Translation', b'Lcl Rotation', b'Lcl Scaling'}:
                         # n_uuid can (????) be linked to root '0' node, instead of a mere object node... See T41712.
                         ob = fbx_helper_nodes.get(n_uuid, None)
-                        if ob is None:
+                        if ob is None or ob.is_root:
                             continue
                         items.append((ob, lnk_prop))
                     elif lnk_prop == b'DeformPercent':  # Shape keys.