If /etc/config/wireless contains:
.....
# option macaddr xx:xx:xx:xx:xx:xx
....
or if there is no option macaddr entry, here is and example of what I automatically get on the next boot:
config wifi-device radio0
option type mac80211
option country US
option channel 149
option hwmode 11na
option htmode HT40+
list ht_capab SHORT-GI-40
list ht_capab TX-STBC
list ht_capab RX-STBC1
list ht_capab DSSS_CCK-40
config wifi-iface
option device radio0
option network lan
option mode ap
option wds 1
option ssid OpenWrt
option encryption psk+aes
option key Yadda_Yadda
config wifi-device radio1
option type mac80211
option channel 36
option macaddr 00:80:48:70:f3:2d
option hwmode 11na
option htmode HT20
list ht_capab SHORT-GI-40
list ht_capab TX-STBC
list ht_capab RX-STBC1
list ht_capab DSSS_CCK-40
# REMOVE THIS LINE TO ENABLE WIFI:
option disabled 1
config wifi-iface
option device radio1
option network lan
option mode ap
option ssid OpenWrt
option encryption none
Should I open up a bug ticket?