Is it possible to do a svn relocate before checking out a subversion repository?

What we would need:
When we perform a change of the domain of the svn server from e.g. svn.something.org to subversion.otherdomain.net then the repository url will change from e.g. https://svn.something.org/svn/foo/trunk to https://subversion.otherdomain.net/svn/foo/trunk. Quickbuild should then be able to perform a working copy relocation.

How this can be done:
First check the current location of the working copy.
If entered url has a different repository part from the one in the working copy metadata (in my example this is https://svn.something.org/svn/foo = the repository root) do a "svn relocate NEWURL" (where NEWURL is the entered url) for svn > 1.7 and a "svn switch --relocate OLDURL NEWURL" for svn < 1.7

I think that can be done just at the beginning of the checkoutByRevision method in the SvnRepository class.

If you have questions, please don't hesitate to ask.

Thanks,
Alex