Bluetooth can't be enabled on devel-proposed phone

[Michał Sawicz]

$ system-image-cli -i
current build number: 202
device name: mako
channel: ubuntu-touch/devel-proposed/krillin.en
last update: 2015-09-29 09:32:06
version version: 202
version ubuntu: 20150929
version device: 20150910
version custom: 20150821-887-33-32-vivid

Can't enable bluetooth, it just silently ignores me trying.

bluetooth.log says:
Unknown option -c
Can't get device list: Operation not supported

$ hciconfig
hci0: Type: BR/EDR Bus: UNKNOWN
        BD Address: 40:B0:FA:0D:43:01 ACL MTU: 1024:6 SCO MTU: 50:8
        UP RUNNING
        RX bytes:0 acl:0 sco:0 events:31 errors:0
        TX bytes:0 acl:0 sco:0 commands:0 errors:0

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: indicator-bluetooth 0.0.6+15.10.20150915-0ubuntu1
Uname: Linux 3.4.0-7-mako armv7l
ApportVersion: 2.19-0ubuntu1
Architecture: armhf
Date: Tue Sep 29 12:53:25 2015
InstallationDate: Installed on 2015-09-29 (0 days ago)
InstallationMedia: Ubuntu Wily Werewolf (development branch) - armhf (20150929-020403)
SourcePackage: indicator-bluetooth
UpgradeStatus: No upgrade log present (probably fresh install)
upstart.indicator-bluetooth.log: ** (process:2842): CRITICAL **: rf_kill_switch_real_try_set_blocked: assertion '_tmp1_ != _tmp2_' failed