[O] Statistics cookies in org-store-link

[William]

Hi all,

As for a recent git version, calling org-store-link on a subtree records its
statistics cookie¹ in the link, which therefore breaks if the said statistic is
changed (with “no match - create this as a new heading ?”)

Links not featuring the progress cookie succeed at finding the headline which
has such a cookie, so I suggest the statistics cookie is removed from the
captured link (just like the priority cookie was).

--
William

¹ http://orgmode.org/manual/Breaking-down-tasks.html