$ git clone -n https://git.cclinux.org/stage/rpms/ghc-cereal.git /var/lib/mock/dist-circle8-build-37343-6590/root/chroot_tmpdir/scmroot/ghc-cereal
Cloning into '/var/lib/mock/dist-circle8-build-37343-6590/root/chroot_tmpdir/scmroot/ghc-cereal'...
$ git reset --hard 3e943a34d20b3ffc56107d09a3ae1f0a4c7f1dfc
HEAD is now at 3e943a3 import ghc-cereal-0.5.4.0-5.el8