i guess you mean apt-get update?
no that doesnt bring it back.
but i finally got it working!
What i did was disable all repositories....
Then do an apt-get update so to be sure that all cache was gone
Then enable all the repositories again and again an apt-get update
and now the apt-get install mp-fremantle-generice-pr works!

So somehow it just doesnt always update when you tell it to..