$ git clone -n https://src.fedoraproject.org/rpms/ghc-rio.git /var/lib/mock/f40-build-743954-111445/root/chroot_tmpdir/scmroot/ghc-rio
Cloning into '/var/lib/mock/f40-build-743954-111445/root/chroot_tmpdir/scmroot/ghc-rio'...
$ git reset --hard bc21d2f17cbcfb4cfe7c2fc422eb389ebaa36eca
HEAD is now at bc21d2f bump release