$ git clone -n https://src.fedoraproject.org/rpms/ghc-old-time.git /var/lib/mock/f31-build-116750-34579/root/chroot_tmpdir/scmroot/ghc-old-time
Cloning into '/var/lib/mock/f31-build-116750-34579/root/chroot_tmpdir/scmroot/ghc-old-time'...
$ git reset --hard 9c73e2e95c9942058075cee4c7fd251478407bfe
HEAD is now at 9c73e2e BR prof for lib and static for executable