$ git clone -n https://src.fedoraproject.org/rpms/ghc-gtk.git /var/lib/mock/f31-build-54423-28001/root/chroot_tmpdir/scmroot/ghc-gtk
Cloning into '/var/lib/mock/f31-build-54423-28001/root/chroot_tmpdir/scmroot/ghc-gtk'...
$ git reset --hard 16e48f127d9be54b0cce11311fd0724b5b00c62c
HEAD is now at 16e48f1 refresh to cabal-rpm-0.13