Comment # 52 on bug 938659 from Johannes Meixner

Regarding comment#43
"50-udev-default.rules ... overrides from later rules are prevented":

I don't think that a "default.rules" file should prevent overrides
from later rules because - as far as I understand - this would be
against how the udev rules system is meant to be used.

I think a "default.rules" file by definition sets only defaults
and intentionally for special cases defaults can be overridden
by later rules.

In this particular case the actual problem is that later rules
falsely override default rules (because those later rules
are not "for special cases").

I think only the actual problem should be solved.

But if udev/systemd upstream agrees it is correct to enforce
the USB printer device default rules in 50-udev-default.rules
then it is of course o.k. to do that (I am not a udev expert
to make such decisions).