$ git clone -n https://src.fedoraproject.org/rpms/swift-lang.git /var/lib/mock/f38-build-720151-97410/root/chroot_tmpdir/scmroot/swift-lang
Cloning into '/var/lib/mock/f38-build-720151-97410/root/chroot_tmpdir/scmroot/swift-lang'...
$ git reset --hard ed1e815a8872624ab0966d8eb46b5259b2369795
HEAD is now at ed1e815 Updated to Swift 5.8-RELEASE