Describe the bug

import FBX created with a dummy node name.

• when not simple animation

However, AI_CONFIG_IMPORT_FBX_PRESERVE_PIVOTS=false setting
prevents the creation of dummy node names.

As a result, animations and characters are not mapped properly, which leads to problems.

To Reproduce

1. mixamo animation download
2. Assimp::Importer importer; importer.SetPropertyBool(AI_CONFIG_IMPORT_FBX_PRESERVE_PIVOTS, false);
3. import mixamo animation
4. see below image (test program:https://github.com/Nor-s/Anim)
   • anim channel name contains AssimpFBX string
   • But model is no, so animation is wrong

Expected behavior

No dummy node in animation
and always create simple anim node When AI_CONFIG_IMPORT_FBX_PRESERVE_PIVOTS=false

Platform (please complete the following information):

• Windows11
• OpenGL