service netif restart [iface] runs a wpa_supplicant twice

[clutton]

What is the best way to restart a wireless stack?

A command "ifconfig wlan0 create wlandev ath0" starts the wpa_supplicant
by itself. It means that the netif script runs the wpa_supplicant twice,
always. Is it ok?

There is my debug during booting:

[netif.network_common()] START:
[netif.network_common()] ITERATION:
[wpa_supplicant] SUPPID=30067
[wpa_supplicant] SUPPID=30067
[netif.network_common()] STOP:

It means that during running a network_common() from the /etc/rc.d/netif
the /etc/rc.d/wpa_supplicant was called twice.

/etc/rc.conf
wlans_ath0="wlan0"
ifconfig_wlan0="WPA DHCP"
ifconfig_em0="DHCP"
ipsec_enable="YES"

/etc/wpa_supplicant.conf 
network={
  ssid="ssid"
  psk="psk"
}

11.0-CURRENT
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