How can a previous migration be cleared from the system i.e. where are the details saved?
CWP to CWP migration is useful, to transfer a site from a live server to a development server. By default, the migration process only works once. It doesn't appear to be possible to do a migration on a fairly regular basis, for further development tests.
The database table root/root_cpmigrations/accounts_cwp appears to hold a previous transfer but deleting the record doesn't change the ability to do a further migration.