IKEA KAJPLATS GU10 WS bulb

Problem Color_temp-only bulbs (e.g. `KAJPLATS GU10 WS 575lm`) that live in a mixed device set get flooded with this error, repeatedly and on every startup: [code] The command is also left half-applied. ## Root cause `ColorMode.HS` is assigned to a bulb's `_color_mode` in three places without checking that the bulb actually supports HS: 1. `hub_event_listener._apply_scene_actions`, a `sceneUpdated` action carrying `colorHue`/`colorSaturation` sets `_color_mode = HS`. 2. `hub_event_listener` `deviceStateChanged` handler, a color event carrying

Excerpt saved from GitHub on 2026-10-23.