3a0d000b94
Backport #21646 A bug was introduced in #17865 where filepath.Join is used to join putative unadopted repository owner and names together. This is incorrect as these names are then used as repository names - which shoud have the '/' separator. This means that adoption will not work on Windows servers. Fix #21632 Signed-off-by: Andrew Thornton <art27@cantab.net>