'wireguard__restart_interface' is undefined with wg-config

[sas1024]

Hi!

I upgraded from 8.4.0 to 17.0.0 role version and give following error:
When I try to use wg-config tag to deploy only configuration changes, I've got error 'wireguard__restart_interface' is undefined.

As workaround I added this to groups variables file:

wireguard__restart_interface: false

After this, role with tag wg-config works again.

[githubixx]

Honestly the tags are not very well tested. I guess I shouldn't have them implemented at all. Nevertheless I guess the problem is that this task is missing the wg-config tag. Without there is no default value for the internal wireguard__restart_interface variable. I try to fix that in the next release.

[githubixx]

Should be fixed by #213