saserr/xsbt — comment on commit d2abd00455208969bfad795e4e2c9c7f6b7a8a7b
File: main/Resolvers.scala line 101
By saserr:

I changes it in commit before this one (502fadfcaa11489b8d83f88a78566d89d62f1ade). Idea is instead of always cloning from remote repository. We clone once and then clone from this local repository for branch copies. First, it is much faster to clone from local copy. Second, because git and mercurial use hard-linking between local clones, there is almost no space overhead with this model.