Comment 4 for bug 2044104

With my initramfs-tools maintainer hat on, I suggest/support following solution:

Modify /usr/share/initramfs-tools/hooks/udev (shipped by udev, source: systemd) to not copy the udev rules generated by chzdev. So changing:

```
for rules in /etc/udev/rules.d/*.rules; do
  if [ -e "$rules" ] && [ ! -e "/lib/${rules#/etc/}" ]; then
    cp -p "$rules" "$DESTDIR/lib/udev/rules.d/"
  fi
done
```

to something like:

```
for rules in /etc/udev/rules.d/*.rules; do
  if [ -e /sbin/chzdev ] && /sbin/chzdev --is-author-of-udev-rule "$rules"; then
    continue
  fi
  if [ -e "$rules" ] && [ ! -e "/lib/${rules#/etc/}" ]; then
    cp -p "$rules" "$DESTDIR/lib/udev/rules.d/"
  fi
done
```

Then `/sbin/chzdev --is-author-of-udev-rule "$rules"` should produce the correct exit code. The tool that generates the udev rules should be queried (is that chzdev or something else?) or a separate helper should be used.