group color_temp does not update group color.{x,y} and in reverse

Bug Report

What happened

When changing one bulbs color_temp or color value (x,y), the other gets recalculated and published, for example setting color_temp: 400 -> "x":0.476993298233858,"y":0.413675289942435

This does not however work for groups. Moreover, the bulb entities in the group don't update this value as well (eg setting color_temp for a group will update color_temp for each bulb, but not their x,y values).

The reverse for x,y is true as well, color_temp does not get updated either for the group or the bulbs in the group

What did you expect to happen

Group behaviour for attributes would be the same as entity attribute

How to reproduce it (minimal and precise)

Create a group of 2 bulbs,
change color_temp for one bulb, notice x,y following suit
change color_temp for the group, notice x,y is not changed

[Koenkk]

Fixed, thanks!

Changes will be available in the latest dev branch in a few hours (https://www.zigbee2mqtt.io/how_tos/how-to-switch-to-dev-branch.html)

Perfect, i'll test it out tommorow! Thanks for the quick turnaround