$ git clone -n https://src.fedoraproject.org/rpms/rust-rand0.9.git /var/lib/mock/f45-build-44217-811/root/chroot_tmpdir/scmroot/rust-rand0.9
Cloning into '/var/lib/mock/f45-build-44217-811/root/chroot_tmpdir/scmroot/rust-rand0.9'...
$ git fetch origin 34da5311e1d918f960b382ddec216e5a356233ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rand0.9
 * [new ref]         34da5311e1d918f960b382ddec216e5a356233ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34da531 Update to version 0.9.5