$ git clone -n https://src.fedoraproject.org/rpms/ghc-hourglass.git /var/lib/mock/f31-build-94053-32457/root/chroot_tmpdir/scmroot/ghc-hourglass
Cloning into '/var/lib/mock/f31-build-94053-32457/root/chroot_tmpdir/scmroot/ghc-hourglass'...
$ git reset --hard 1af038194c12742da54c4506d362d5f9df328fb2
HEAD is now at 1af0381 BR prof for lib and static for executable