Combo is not updated on WS of Items and SelItems

[mkromberg]

Login to OWUM (see #363), select the "Admin" tab. Enter "New work item group" in the "Ny Gruppe" edit field and select "Opret Ny Gruppe". Notice:

Server sends:

{"WS":{"ID":"F1.TC.Admin.GRP.GRUPPE","Properties":{"Items":["Indkøb (0 opgaver)","Inden Pinse 2024 (28 opgaver)","Efter Pinse 2024 (9 opgaver)","New work item group (0 opgaver)"],"SelItems":[0,0,0,1]}}}

... but the dropdown is not updated in any way.

[mkromberg]

It seems that Items is updated if updated on its own, the issue arises when both properties are set at once. However, if Items is set and SelItems not, the old value of SelItems persists even if the length of Items has changed.