- Before updating the "beacon_sent" of a subnet, we need to check if the subnet still exists, especially for a Provisioner. - Fix a bug which will cause Provisioner failed to send Secure Network Beacon if no device is provisioned
- Before updating the "beacon_sent" of a subnet, we need to check if the subnet still exists, especially for a Provisioner. - Fix a bug which will cause Provisioner failed to send Secure Network Beacon if no device is provisioned