When I have a (local) patch bundle and want to autocomplete its name for
"darcs apply", I have an lag that goes longer as the current repository
grows bigger. Ie, in the darcs.net repo, I have a one second lag, while
in a fresh repo I have near-instant completion.
The following patch sent by Ben Franksen <firstname.lastname@example.org> updated issue issue2420 with
* resolve issue2420: commandGetArgPossibilities for apply should not list all files in the repo