F18 galera conflicts with file from package filesystem

symlinking the crypt modules and installing without checking deps
rpm -Uvh --nodeps galera-23.2.2-1.rhel5.x86_64.rpm
Preparing... ################################# [100%]

Will result in this error:
file /usr/bin from install of galera-23.2.2-1.rhel5.x86_64 conflicts with file from package filesystem-3.1-2.fc18.x86_64

this error has been seen on a couple of 3rd party repos.
for instance this:
https://bugzilla.redhat.com/show_bug.cgi?id=870655

here the problem was: "they claim to own /usr/bin directory (which they have no business owning) and the specified permissions differ from those of filesystem package. Rpm < 4.10 just does not notice and report the permission conflict."