we used an empty value for the Key-Value ComboBox for defaults.
With extjs6, if the idProperty of a model is empty, they generate
a name for it, which breaks our logic for submitting
(currently we checked if this is empty, and send a delete command
to our api)
instead, we use the value 'default' and check for it when we submit
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Using ExtJS6 a browser refresh (F5) do not send the 'show' event which we use to display the store as it did with ExtJS4.
At the momment only for tabs inside the datacenter tabpanel, since node and lxc tabpanels are not yet in manager6/
