Groups are not handled correctly

[tooh]

Group Hue is a group with one device in it namely FRITZ!DECT 200 #1

Device ID:           DB:55:D2-900
Device Name:         Hue
Device State:        ON
Device Power:        HTTP/1.0 500 Internal Server ErrorContent-Length: 0Content-Type: text/plain; charset=utf-8W
Device Energy:       HTTP/1.0 500 Internal Server ErrorContent-Length: 0Content-Type: text/plain; charset=utf-8Wh
Device Temperature:  inval degree Celsius  

Device ID:           087610161956
Device Name:         FRITZ!DECT 200 #1
Device State:        ON
Device Power:        0.0W
Device Energy:       775Wh
Device Temperature:  inval degree Celsius  

[tooh]

After updating tot 6.52 groups are still not handled correctly.

Device ID:           DB:55:D2-900
Device Name:         Hue
Device State:        ON
Device Power:        0.0W
Device Energy:       0Wh
Device Temperature:  inval degree Celsius  

Device ID:           087610161956
Device Name:         FRITZ!DECT 200 #1
Device State:        ON
Device Power:        0.35W
Device Energy:       1203Wh
Device Temperature:  8.5 degree Celsius