Edit a rerere conflict resolution

Hi all,

Would it be a useful addition to have a command 'git rerere edit <path> 
<commit>' ?

This would allow the user to edit the conflict resolution which was used 
in a certain commit (merge, rebase.. ).

Now I tend to grep in the .git/rr-cache directory, because I don't want 
to do 'git rerere forget' as this would require me to refix more 
resolution than needed.

Vincent