$ git clone -n https://src.fedoraproject.org/rpms/ghc-free.git /var/lib/mock/f41-build-839832-160371/root/chroot_tmpdir/scmroot/ghc-free
Cloning into '/var/lib/mock/f41-build-839832-160371/root/chroot_tmpdir/scmroot/ghc-free'...
$ git reset --hard 8737b3646c67b31f29f1da73fc7bafa363c07751
HEAD is now at 8737b36 https://hackage.haskell.org/package/free-5.2/changelog