What is a "Protected multilib version"?

[Todd And Margo Chester]

Hi All,

Yum is giving me a error I don't know how to handle:
# yum --skip-broken upgrade
...
Error: Protected multilib versions: sqlite-3.6.23.1-0.3.el6.x86_64 != 
sqlite-3.6.20-1.el6.i686
Error: Protected multilib versions: raptor-1.4.21-0.10.el6.x86_64 != 
raptor-1.4.18-5.el6_2.1.x86_64\

What is a "Protected multilib version"? And, how do I
fix it?

Many thanks,
-T