Currently there is no option to change the url in the branch/tag dialog. It's filled in automatically with the url of the working copy so that you can just change it instead of having to enter a full url.
-- You received this message because you are subscribed to the Google Groups "TortoiseSVN" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tortoisesvn/55ec9c6e-7a7a-4b99-812e-efc5de626e60%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
