Could the .i686 packages for both httpd-devel and php-devel be blocked from inclusion in the x86_64 compose, we don't (can't/won't) support them biarch.
This needs to be filed against mash in bugzilla, I have done so with https://bugzilla.redhat.com/show_bug.cgi?id=1217168
Metadata Update from @jorton: - Issue set to the milestone: Fedora 18 Alpha
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