Created attachment 671959 [details]
sosreport output from an affected F18 Beta system.

Description of problem:
An attempt to install glibc.i686 on x86_64 Fedora 18 Beta system fails.

Version-Release number of selected component (if applicable):
Fedora 18 Beta
glibc.i686

How reproducible:
Every time.

Steps to Reproduce:
1. Install Fedora 18 Beta (reproduced in "KDE desktop" and "Infrastructure server" pre-defined configs).
2. yum install glibc.i686
3. failure
  
Actual results:
yum install glibc.i686
Loaded plugins: langpacks, presto, refresh-packagekit
Resolving Dependencies
--> Running transaction check
---> Package glibc.i686 0:2.16-24.fc18 will be installed
--> Processing Dependency: glibc-common = 2.16-24.fc18 for package: glibc-2.16-24.fc18.i686
--> Processing Dependency: libfreebl3.so(NSSRAWHASH_3.12.3) for package: glibc-2.16-24.fc18.i686
--> Processing Dependency: libfreebl3.so for package: glibc-2.16-24.fc18.i686
--> Running transaction check
---> Package glibc.i686 0:2.16-24.fc18 will be installed
--> Processing Dependency: glibc-common = 2.16-24.fc18 for package: glibc-2.16-24.fc18.i686
---> Package nss-softokn-freebl.i686 0:3.14-5.fc18 will be installed
--> Finished Dependency Resolution
Error: Package: glibc-2.16-24.fc18.i686 (fedora)
           Requires: glibc-common = 2.16-24.fc18
           Installed: glibc-common-2.16-28.fc18.x86_64 (@updates-testing)
               glibc-common = 2.16-28.fc18
           Available: glibc-common-2.16-24.fc18.x86_64 (fedora)
               glibc-common = 2.16-24.fc18
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

Note: I do not have updates-testing repository enabled:

[root@pictsie yum.repos.d]# pwd
/etc/yum.repos.d
[root@pictsie yum.repos.d]# grep -H enabled *
fedora.repo:enabled=1
fedora.repo:enabled=0
fedora.repo:enabled=0
fedora-updates.repo:enabled=1
fedora-updates.repo:enabled=0
fedora-updates.repo:enabled=0
fedora-updates-testing.repo:enabled=0
fedora-updates-testing.repo:enabled=0
fedora-updates-testing.repo:enabled=0
[root@pictsie yum.repos.d]# 

Expected results:
Package installs, pulling in any prerequisites.

Additional info:
Attached sosreport from an affected system.