[Spacewalk-list] rhnpush error - 1.0

[Tom Brown]

Hi

I am trying to add some packages to a channel that already has some
packages in it - The rhnpush fails with the following

Error Message:
    ORA-00001: unique constraint (SPACEWALK.RHN_CNP_CID_NID_UQ) violated
ORA-06512: at "SPACEWALK.RHN_CHANNEL", line 1147
ORA-06512: at line 1
Error Class Code: 23
Error Class Info: Could not update database entry.

Looking in the archives this was an issue in i think 0.8 but had
seemingly been fixed.

What can cause the above error during a rhnpush?

thanks