0.66.x xy_color broken

[NaffanDroo]

Home Assistant release with the issue:

0.66.1

Last working Home Assistant release (if known):
0.65.6

Operating environment (Hass.io/Docker/Windows/etc.):

hass.io
Component/platform:

Lights

Description of problem:
As in my comments on: #13465
@balloob Is this the change that made my colours go pink?
My scene sets this for example:

  light.kitchen_lightstrip:
    state: on
    brightness: 107
    xy_color: [0.4575, 0.4099]

Scene gen detects the light has actually been set to:

  light.kitchen_lightstrip:
    state: on
    brightness: 107
    xy_color: [0.448, 0.419]

Just to confirm, I rolled back to 0.65.6 and set the same scene, then ran scenegen:

  light.kitchen_lightstrip:
    state: on
    brightness: 107
    xy_color: [0.4575, 0.4099]

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

name: Dimmer 01
entities:
  light.kitchen_lightstrip:
    state: on
    brightness: 107
    xy_color: [0.4575, 0.4099]

Traceback (if applicable):

Additional information:
Guessing it was this pull somehow... #13465

Also color is broken on zwave device... When i try set white color my LEDs on RGBW Zwave Fibaro i can not set.

[Alcatr4zz]

I'm having a similar issue as @Pepeel . I can't change the color of my Z-Wave Zipato RGBW bulb since 0.66.x. Setting the brightness still works perfectly fine.

[NaffanDroo]

Just to note that this is still broken in the beta 0.67.0b0 - it may not be pink, and has gone green but ultimately the issue is the same - something in 0.66 broke XY colours for Hue and it hasn't been restored yet despite the efforts of the above merge.

I'd comment on the merge but it is locked by @amelchio.

[NaffanDroo]

Just a further cross comment to help anyone looking at this;
Expected snippet from my scene:

  light.living_room:
    state: on
    brightness: 254
    xy_color: [0.4575, 0.4099]

Actual from scene gen:

  light.living_room:
    state: on
    brightness: 254
    xy_color: [0.43, 0.459]

[NaffanDroo]

(Apologies for the close and reopen - fat fingers!)

[amelchio]

Is it your bulbs or the web UI that has the wrong color?

[NaffanDroo]

Bulbs, web ui shows them as green too

[lukhas]

Hello, any chance of that fix landing in a 0.66 point release?

[amelchio]

No but it will be in 0.67 this weekend (or you can get the beta already today).