$ git clone -n https://src.fedoraproject.org/rpms/ghc-unbounded-delays.git /var/lib/mock/f31-build-55029-28081/root/chroot_tmpdir/scmroot/ghc-unbounded-delays
Cloning into '/var/lib/mock/f31-build-55029-28081/root/chroot_tmpdir/scmroot/ghc-unbounded-delays'...
$ git reset --hard 8579b59c0f4dda5b445eafde804b07daf6002255
HEAD is now at 8579b59 refresh to cabal-rpm-0.13