hashes is desired, it could return the full set of hashes.
--[[Joey]]
+
+> I fixed the last part, i.e. a rename hook function now returns the
+> full set of hashes. As I also converted it to take named parameters,
+> such a function still is passed a reference to the original array,
+> though, because one can't build a hash containing an array of hashes
+> as a value, without passing this array as a reference.
+>
+>> Sure.
+>
+> I'm not entirely sure about your first concern. Calling the hook
+> before or after the subpages addition both have their own problems.
+>
+> What about running the hook before *and* after the subpages
+> addition, with an additional `when` named parameter, so that
+> a given hook function can choose to act only before or after, or both?
+>
+> --[[intrigeri]]
+>>
+>> Have you thought about making the hook be run once *per* file that is
+>> selected to be renamed? This would even handle the case where two
+>> plugins use the hook; plugin A would see when plugin B adds a new file
+>> to be renamed. And the subpage renaming stuff could probably be moved
+>> into the rename hook too. --[[Joey]]