The sprite name doesn't refresh in Sprite Editor

2) How can we reproduce it using the example you attached
see attached video

1 Create new project or use attached
2 Import some image
3 Make it Sprite (set Texture Type to Sprite) in Inspector
4 Set Sprite mode to Multiple
5 Open Sprite Editor
6 Create 1 sprite by hands and select Name by mouse - notice that name is someName_0
7 Create 1 more sprite by hands and notice that the Name is still someName_0

Expected result: the names should be refreshed