[packagekit] yum: Refreshing cache error

[Richard Hughes]

This is a bug that annoys me greatly:
https://bugzilla.redhat.com/show_bug.cgi?id=439735

I really want the cache to be refreshed in the backend (like it is now)
and then for the original action (e.g. search-group) to be redone.

I think Robin did something like this for the yum2 backend, but it's too
close to the F9 release date to switch backends.

Could a python legend have a look at this please?

Thanks,

Richard.