[colord] Device key with username?

[Florian Höch]

I've noticed the device keys contain the username under some
circumstances, e.g.

/org/freedesktop/ColorManager/devices/xrandr_Lenovo_Group_Limited_<username>

I'm interested what the preconditions are for this, i.e. if the EDID is
incomplete (e.g. no EDID model or serial), the username is appended?

Thanks.

Florian