$ git clone -n https://src.fedoraproject.org/rpms/ghc-unbounded-delays.git /var/lib/mock/f31-build-117052-34599/root/chroot_tmpdir/scmroot/ghc-unbounded-delays
Cloning into '/var/lib/mock/f31-build-117052-34599/root/chroot_tmpdir/scmroot/ghc-unbounded-delays'...
$ git reset --hard b9bfd2fa1dcd3ccf6f3929c95240a61c816ae0db
HEAD is now at b9bfd2f BR prof for lib and static for executable