$ git clone -n https://src.fedoraproject.org/rpms/ghc-Boolean.git /var/lib/mock/f31-build-53915-27924/root/chroot_tmpdir/scmroot/ghc-Boolean
Cloning into '/var/lib/mock/f31-build-53915-27924/root/chroot_tmpdir/scmroot/ghc-Boolean'...
$ git reset --hard 839bdecd1ccd60754642d255f120f32c430e146b
HEAD is now at 839bdec refresh to cabal-rpm-0.13