Scene always runs entity's 'turn_on' command, even if already turned on

@Getslow wrote:

Hi all,

Recently I’ve been busy setting up scenes in my Home Assistant and I came across the following situation:

I’ve got an older Samsung Smart TV that doesn’t support Wake On LAN, but once it is connected I can use the Samsung integration functions to turn it off. I wanted to couple the TV’s functionality with my Chromecast, so I’ve made the following universal media player:

- platform: universal
  name: Samsung tv
  children:
    - media_player.chromecast
    - media_player.samsung_ue40es5500
  commands:
    turn_on:
      service: script.samsungtv_power
    turn_off:
      service: media_player.turn_off
      entity_id: media_player.samsung_ue40es5500
    volume_up:
      service: media_player.volume_up
      entity_id: media_player.samsung_ue40es5500
    volume_down: 
      service: media_player.volume_down
      entity_id: media_player.samsung_ue40es5500
    volume_mute:
      service: media_player.volume_mute
      entity_id: media_player.samsung_ue40es5500
  attributes:
    state: media_player.samsung_ue40es5500

The script.samsungtv_power is a script that sends an IR power command, which toggles the power.

My TV scene has the following form:

- id: '1586456650331'
  name: TV
  entities:
    light.couch:
      brightness: 150
      color_temp: 420
      state: 'on'
    light.couch_small:
      state: 'off'
    [...]
    media_player.samsung_tv:
      state: 'on'

When I turn on this scene while the TV is already on, it will turn off the TV. This while Home Assistant already knows the TV is turned on.

Am I overseeing something here, or could this be a bug?

Thanks!

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