un-selecting the default sink in pavucontrol does not update default sink
environment
pulseaudio 11.0-22-g4904d-dirty
steps to reproduce
move the user persistent storage directory out of the way mv ~/.config/pulse ~/.config/pulse.saf
restart pulseaudio pulseaudio -k
note default/fallback sink with pacmd list-sinks
"* index: 2
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>"
using pavucontrol set default/fallback sink to another sink.
verify the default/fallback sink is now the new sink pacmd list-sinks
"* index: 1 name: <alsa_output.usb-Logitech_Inc_Logitech_USB_Headset_H540_00000000-00-H540.analog-stereo>"
using pavucontrol unset the default/fallback sink.
expected behaviour
The default/fallback sink should be the original default sink
observed behaviour
The default/fallback is the one configured via pavucontrol
"* index: 1 name: <alsa_output.usb-Logitech_Inc_Logitech_USB_Headset_H540_00000000-00-H540.analog-stereo>"