OK, from tromo/delfi:
"In a few hours all the images from 18-19-20/6/2020 will be updated with fixed wifi stuff.
Once the feed are updated, one can avoid reflash via telnet:
root@osmio4k:~# opkg remove --force-depends python-wifi
Removing python-wifi (0.8.0) from root...
root@osmio4k:~# opkg install python-wifi
Installing python-wifi (0.6.1) on root.
Downloading http://pur-e2.....ipk.
Configuring python-wifi.
Sorry to all on the all the trouble! Sometimes we screw things" :)