Comment # 3 on bug 1184514 from Takashi Iwai

(In reply to Marcus R���ckert from comment #2)
> I guess it needs to be a Requires(post/postun) as you need the
> kernel-default in when the scriptlet is running that rebuilds the packages
> like nvidia

Hrm, I'm not sure about that.  If you can verify the exact condition, let us
know.