Package upgrade fails using 'System Set Manager' with "Transaction Check Error" when scheduling for systems subscribed to different channels.

Issue

• Trying to update a number of packages on RHEL 5 and RHEL 6 systems using System Set Manager, RHEL 5 clients fail with transaction check errors. For example:

"Error while executing packages action: Transaction Check Error: file /usr/kerberos/man/man5/krb5.conf.5.gz from install of krb5-libs-1.6.1-70.el5_9.2.i386 conflicts with file from package krb5-libs-1.6.1-36.el5_4.1.x86_64 file /usr/share/locale/ja/LC_MESSAGES/Linux-PAM.mo from install of pam-0.99.6.2-12.el5.i386 conflicts with file from package pam-0.99.6.2-6.el5_4.1.x86_64 file /usr/share/locale/ko/LC_MESSAGES/Linux-PAM.mo from install of pam-0.99.6.2-12.el5.i386 conflicts with file from package pam-0.99.6.2-6.el5_4.1.x86_64"

• Issue is occurring when updating packages in bulk for systems subscribed to different channels.

• Another manifestation of this issue is when updating different packages via SSM to systems subscribed to different
  channels. Eg. if selecting same package name from the same arch of different RHEL versions (for example RHEL5 and
  RHEL6), the package of the lower version is not included.