Dear Maintainer,

we use Debian Trixie as our printserver, we've got a new printer HP Color LaserJet Pro MFP 4302 and connected them via IPP.
Printig works so far, but when we try to print double sided long side it always print short side, no matter what we configure..

It looks like that the cups-filter driver has an issue with rastertopclm filter.

What I did:
lp -d HP4302 -o sides=two-sided-long-edge /home/user/2-site-test.pdf

but in the logs is:
[Job 26] argv[5]="-o media=A4 -o number-up=1 -o sides=two-sided-long-edge -o outputorder=normal -o Duplex=DuplexNoTumble -o PageSize=A4 -o fit-to-page ..."
[Job 26] Running filter /usr/lib/cups/filter/pdftopdf
[Job 26] Running filter /usr/lib/cups/filter/gstoraster
[Job 26] Running filter /usr/lib/cups/filter/rastertopclm
[Job 26] setpagedevice: duplex=1 tumble=1


I attached the current ppd file, printers.conf and the logfile.

best regards