$ git clone -n https://src.fedoraproject.org/rpms/ghc-uri.git /var/lib/mock/f33-build-150804-43271/root/chroot_tmpdir/scmroot/ghc-uri
Cloning into '/var/lib/mock/f33-build-150804-43271/root/chroot_tmpdir/scmroot/ghc-uri'...
$ git reset --hard d5d0a39cc9377987262df14cef123250b38db18c
HEAD is now at d5d0a39 rebuild