$ git clone -n https://src.fedoraproject.org/rpms/ghc-IOSpec.git /var/lib/mock/f40-build-743039-111037/root/chroot_tmpdir/scmroot/ghc-IOSpec
Cloning into '/var/lib/mock/f40-build-743039-111037/root/chroot_tmpdir/scmroot/ghc-IOSpec'...
$ git reset --hard dd2b1d5e3bd8294d4156795b161db4db9207bd03
HEAD is now at dd2b1d5 bump release