Lars, submitting samba-krb-printing should work with 'osc mr home:lmuelle:bnc906336 samba-krb-printing openSUSE:13.1:Update'. (already tested it in sr#309830) Another option is, create the package with 'osc branch -MN openSUSE:13.1:Update samba-krb-printing', copy your sources to the new package. Then it also works with osc mr. I hope that helps.