Relocate wc after a repos split

Hello,

I just had a conversation with maxb about splitting up repositories on
irc and we came to the following conclusion: If I want to split up a
repository into two or more repos then at least one of them will have a
different UUID and thus relocating working copies with svn switch
--relocate will fail:

svn: The repository at [...] has uuid [...] , but the WC has [...]

Afaik there is no clean solution for this.

greets
Tobias