Can't move animations from folder in Image Editor

Link to .capx file (required!):

animations_folder.capx

Steps to reproduce:

1. Double click on sprite

2. Move "Default" animation to "New Folder"

Observed result:

If you move any animation to any folder it's permanent.

Expected result:

Be able to move animations outside from folder and delete unused folders.

Browsers affected:

Operating system & service pack:

Win 7 64bit Sp1

Construct 2 version:

r138.2

Thanks, should be fixed in the next build.