Description of problem:

Currently the spec for dleyna-server does not specify an arch for the requires statement of 'dleyna-connector-dbus'.

<snip>
# repoquery --requires dleyna-server.x86_64
dbus
dleyna-connector-dbus
</snip>

If for some reason there is a newer edition of the package available in another repository (or base), the install of packages will fail due to version/dependency mismatches.

A current scenario where this can be seen is from the standpoint of customers installing previous RHEL releases via kickstart with optional enabled.

For instance, kickstarting RHEL 7.3 with optional enabled will pull in the latest dylena-connector-dbus that doesn't match the available release on the kickstart media, and also doesn't match the architecture, as we are unspecific.

Doing a resolve against dlyena-server with 7.3 install media and rhel-7-server-optional-rpms reveals the follwing:

<snip>
# repoquery --requires dleyna-server.x86_64 --resolve
...
dleyna-connector-dbus-0:0.2.0-2.el7.i686
dleyna-connector-dbus-0:0.2.0-1.el7.x86_64
</snip>

We would actually encounter this same issue in the event we shipped a newer version of 'dleyna-connector-dbus.i686' during RHEL 7.4's lifecycle, due to the fact that we do not update install media/ISOs for the releases after GA.

The large occurrence of this issue is noticed when people are installing RHEL Workstation or the @gnome-desktop group.
The trickle down of dependencies will cause us to hit this issue during an install, starting with the addition of the 'totem' package from the group.

Version-Release number of selected component (if applicable):
RHEL 7.4
dleyna-connector-dbus-0:0.2.0-2.el7.i686
dleyna-server

How reproducible:
100%

Steps to Reproduce:
1. Utilize a test system with InstallMedia-7.3 (RHEL 7.3 GA ISO or kickstart tree) and rhel-7-server-optional-rpms (7Server, i.e. 7.4) available.
2. Attempt to install @gnome-desktop, or dleyna-server.x86_64.

Actual results:
Error: Package: dleyna-connector-dbus-0.2.0-2.el7.i686 (rhel-7-server-optional-rpms)
           Requires: libdleyna-core-1.0.so.4
**********************************************************************
yum can be configured to try to resolve such errors by temporarily enabling
disabled repos and searching for missing dependencies.
To enable this functionality please set 'notify_only=0' in /etc/yum/pluginconf.d/search-disabled-repos.conf
**********************************************************************

Error: Package: dleyna-connector-dbus-0.2.0-2.el7.i686 (rhel-7-server-optional-rpms)
           Requires: libdleyna-core-1.0.so.4


Expected results:
Installing dleyna-server.x86_64 should only pull dependencies for dleyna-connecer-dbus.x86_64

dleyna-server.x86_64 should require dleyna-connector-dbus(x86-64)
dleyna-server.i686 should require dleyna-connector-dbus(x86-32)