* any attempt to modify printer instance settings using "lpoptions -p
laserjet5si/konzept -o InputSlot=Upper" results in deletion of all
"Dest" lines previously present within lpoptions file and modification
of the single line that was considered to be affected
Not quite my observation. I cannot set up more than one instance. Adding
a second one witj lpoptions deletes the existing one. You show five
lines in your example. Was ~/.cups/lpoptions edited by hand?
For clarification:
The ~/.cups/lpoptions file cited above has been extracted from a backup
taken before upgrade towards debian bullseye (minus potential but in
case present unintentional modifications while copy-pasting from the
backup).
It is being rewirtten in the same way you reproduced above upon any
attempt to issue an "lpoptions -p" command with the new CUPS installation.
Thanks for keeping tracks of this issue.
Regards,
Martin
