$ git clone -n https://src.fedoraproject.org/rpms/ghc-hakyll.git /var/lib/mock/f33-build-238662-50663/root/chroot_tmpdir/scmroot/ghc-hakyll
Cloning into '/var/lib/mock/f33-build-238662-50663/root/chroot_tmpdir/scmroot/ghc-hakyll'...
$ git reset --hard 77b1831d48344fc0d80357f9a50f7fc9aff09a45
HEAD is now at 77b1831 update to 4.13.0.1