Blender Git Loki

Multi-Objects: POSE_OT_select_hierarchy (no real change)

This operator doesn't need any changes. Following the guideline of
multi-objects behaving alike joined armatures, there is no need
to change any armature that is not the active one.

That said I will revert the behaviour of ARMATURE_OT_SELECT_hierarchy to
follow the same rule (i.e., revert dcc623e7e7ea).