bt_mesh_scenes_state::current_scene field
The Current Scene state is a 16-bit value that contains either the Scene Number of the currently active scene or a value of 0x0000 when no scene is active. When a Scene Store operation or a Scene Recall operation completes with success, the Current Scene state value shall be to the Scene Number used during that operation. When the Current Scene Number is deleted from a Scene Register state as a result of Scene Delete operation, the Current Scene state shall be set to 0x0000. When any of the element's state that is marked as “Stored with Scene” has changed not as a result of a Scene Recall operation, the value of the Current Scene state shall be set to 0x0000. When a scene transition is in progress, the value of the Current Scene state shall be set to 0x0000.