Flag to preserve offline operation of WC -> WC copy

On Thu, 19 Oct 2006, Malcolm Rowe wrote:

> On Wed, Oct 18, 2006 at 05:23:08PM -0700, dlr@tigris.org wrote:
> > + operations should change the merge info. Instead, this form of
> > + 'copy' will not replicate non-local merge info unless the -u
> > + switch (new) is used (a la 'status -u').
>
> Bikeshed, but _please_ don't use the --show-updates/-u switch for
> this - it really doesn't have anything to do with 'copy'.

We're trying to handle a couple use cases here:

1) Allow WC -> WC 'copy'/'move' commands to continue to support
offline operation.

2) Allow WC -> WC 'copy'/'move' commands to propogate both explicity
merge info (the pre-existing value of the "svn:mergeinfo" property on
the source path), and implicit merge info (all revisions represented
by the object at the source path).

An option for 'copy'/'move' will be introduced to support #2. "-u"
was suggested because it make 'status' contact the repository, which
is similar to what it'll do here. However, the long name
"--show-updates" isn't correctly descriptive of what we're doing
(retrieving any inherited merge info and looking up the revision when
the source path first appeared). Anyone have a better suggestion?

- Dan