Widgets: don't send commands on external state changes

[wookie666]

Group Dimmer when using AV function of child items sends commands to all items on every update

Expected behavior

Group dimmer should control all items in group. But when you use average function to have it Update the state, it should only post update, and not send command.

I agree, that this seems to be the same issue, I did not see that the group-average were involved.

I was able to reproduce with four items (without any links):

item_group (group:Dimmer)
item1 (Dimmer)
item2 (Dimmer)
item3 (Dimmer)
The code of the UI page is:

config:
label: items
blocks:

• component: oh-block
  config: {}
  slots:
  default:
  - component: oh-grid-cells
  config: {}
  slots:
  default:
  - component: oh-cell
  config:
  action: group
  actionGroupPopupItem: Item_goup
  masonry: null

Klicking on the cell opens the group “Item_goup” where you can control each item but also the group.

I changed only item1 to 85 but got:

2021-01-11 08:38:50.993 [INFO ] [openhab.event.ItemCommandEvent ] - Item 'Item1' received command 85
2021-01-11 08:38:51.004 [INFO ] [hab.event.GroupItemStateChangedEvent] - Item 'Item_goup' changed from 60.00000000 to 72.33333300 through Item1
2021-01-11 08:38:51.029 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'Item1' changed from 48 to 85
2021-01-11 08:38:51.118 [INFO ] [openhab.event.ItemCommandEvent ] - Item 'Item_goup' received command 72
2021-01-11 08:38:51.123 [INFO ] [openhab.event.ItemCommandEvent ] - Item 'Item1' received command 72
2021-01-11 08:38:51.126 [INFO ] [openhab.event.ItemCommandEvent ] - Item 'Item2' received command 72
2021-01-11 08:38:51.128 [INFO ] [openhab.event.ItemCommandEvent ] - Item 'Item3' received command 72
2021-01-11 08:38:51.137 [INFO ] [hab.event.GroupItemStateChangedEvent] - Item 'Item_goup' changed from 72.33333300 to 68.00000000 through Item1
2021-01-11 08:38:51.138 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'Item1' changed from 85 to 72
2021-01-11 08:38:51.140 [INFO ] [hab.event.GroupItemStateChangedEvent] - Item 'Item_goup' changed from 68.00000000 to 70.00000000 through Item2
2021-01-11 08:38:51.142 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'Item2' changed from 66 to 72
2021-01-11 08:38:51.144 [INFO ] [hab.event.GroupItemStateChangedEvent] - Item 'Item_goup' changed from 70.00000000 to 72.00000000 through Item3
2021-01-11 08:38:51.147 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'Item3' changed from 66 to 72

Please see post https://community.openhab.org/t/openhab-3-group-average-causing-weird-results/113651/7

[Rossko57]

Could rephrase the new title as "don't send any commands from a UI unless it is a user action". This issue may not be confined to Groups, I don't know.