How to change definition of gnus-summary-exit?

[Nikolaus Rath <Nikolaus@rath.org>]

Hello,

I would like to change the definition of the gnus-summary-exit function.

I have made a copy of gnus-sum.el, put it in a new directory, modified
it, and added this directory to my load path in ~/.emacs:

| (add-to-list 'load-path "/home/nikratio/dir-with-gnus-sum.el")


If I start gnus and do C-h f gnus-summary-exit, it tells me that the
function is defined in gnus-sum.el. If I click on gnus-sum.el, Emacs
opens my modified gnus-sum.el file.

*However*, the version of gnus-summary-exit that Gnus is actually using
is *not* my modified one, but the original.

In order to use my version, I have to explicitly eval the definition
using C-x C-e. After that, it is used by Gnus.


What is happening here? Why does the help refer me to the modified
version, but the version in memory is actually the original one? And how
do I tell emacs/gnus to use my version?

Thanks,
-Nikolaus

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