About `minor-mode-key-binding'

[Xue Fuqiao]

In the docstring of `minor-mode-key-binding':

  If the first binding is a non-prefix, all subsequent bindings will be
  omitted, since they would be ignored.  Similarly, the list doesn't
  include non-prefix bindings that come after prefix bindings.

If the first binding is a non-prefix, like `C-f', that all subsequent bingings 
will be omitted is easily understood by me.  But why doesn't the list include 
non-prefix bindings that come after prefix bindings?  For example, `C-f' after 
the `C-x' prefix.  Or where do I misunderstand the meaning of this docstring?  
Thanks.

-- 
Best regards, Xue Fuqiao.
http://www.emacswiki.org/emacs/XueFuqiao