How to stop importing SVN repo

I have created two new projects (lenmus and lomse) and imported the existing SVN repositories from Sourceforge. But once imported, it seems that a new import is periodically re-scheduled by Launchpad. How can I mark that current import is ok and to stop more imports?

I would like to move the projects from Sourceforge to Launchpad, so current SVN repos are going to be discarded.

Another related question: how to import branches and tags? I'm only able to import the trunck branch.

Thank you.