Cannot update libsmbclient packages due a broken dependency issue on RHEL6

Issue

• When trying to update the system, yum throws the error below:

# yum update
[..SNIP..]

rhel-x86_64-server-6                                           | 1.8 kB     00:00
rhel-x86_64-server-6/primary                                   |  18 MB     00:01
rhel-x86_64-server-6                                                      12888/12888
rhn-tools-rhel-x86_64-server-6                                 | 1.6 kB     00:00
rhn-tools-rhel-x86_64-server-6/primary                         |  23 kB     00:00
rhn-tools-rhel-x86_64-server-6                                                129/129

[..SNIP..]

--> Processing Dependency: samba-winbind = 3.6.9-168.el6_5 for package: samba-winbind-clients-3.6.9-168.el6_5.i686
--> Finished Dependency Resolution
Error: Package: samba-winbind-krb5-locator-3.6.9-168.el6_5.x86_64 (@rhel-x86_64-server-optional-6)
           Requires: samba-winbind = 3.6.9-168.el6_5
           Removing: samba-winbind-3.6.9-168.el6_5.x86_64 (@rhel-x86_64-server-6)