$ git clone -n https://src.fedoraproject.org/rpms/rust-http0.2.git /var/lib/mock/f40-build-1497018-23862/root/chroot_tmpdir/scmroot/rust-http0.2
Cloning into '/var/lib/mock/f40-build-1497018-23862/root/chroot_tmpdir/scmroot/rust-http0.2'...
$ git fetch origin 8cb245e8e82c89fad6b1abd4a1d793216f73848f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-http0.2
 * [new ref]         8cb245e8e82c89fad6b1abd4a1d793216f73848f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cb245e Update to version 0.2.12