mopidy/c/add and others not working

[minils]

Issuing commands related to the track list (adding, clearing, ...) does not work.
Is there a incompatibility with the current version?

$ pip3 freeze
asn1crypto==0.24.0
certifi==2018.8.24
chardet==3.0.4
cryptography==2.6.1
entrypoints==0.3
font-roboto==0.0.1
fonts==0.0.3
idna==2.6
keyring==17.1.1
keyrings.alt==3.1.1
Mopidy==3.0.2
Mopidy-Iris==3.49.0
Mopidy-MPD==3.0.0
Mopidy-MQTT-NG==1.0.0
mopidy-pidi==1.0.3
mopidy-raspberry-gpio==1.0.0
Mopidy-Spotify==4.0.1
Mopidy-TuneIn==1.0.0
musicbrainzngs==0.7.1
netifaces==0.10.9
numpy==1.16.2
olefile==0.46
paho-mqtt==1.5.0
pidi-display-pil==0.1.0
pidi-display-st7789==0.1.1
Pillow==5.4.1
pycrypto==2.6.1
PyGObject==3.30.4
Pykka==2.0.2
pyspotify==2.1.3
python-apt==1.8.4.1
pyxdg==0.25
requests==2.21.0
RPi.GPIO==0.7.0
SecretStorage==2.3.1
six==1.12.0
spidev==3.4
ssh-import-id==5.7
ST7789==0.0.2
tornado==5.1.1
urllib3==1.24.1

[odiroot]

Add was reported in #2 and I can confirm it broke. Will need to look into others again.