The old behavior for the "Hide Others" operator was to show the active layer, hide the
other layers and not do anything about layer groups. If the active node was a
layer group, nothing would be done.
This new behavior will act based on the active nodes type:
- If the active node is a layer, show active layer and parenting layer groups
- If the active node is a layer group, show all child nodes (layers and layer groups)
and parenting layer groups
Pull Request: https://projects.blender.org/blender/blender/pulls/133893