$ git clone -n https://src.fedoraproject.org/rpms/ghc-temporary.git /var/lib/mock/f41-build-839602-160255/root/chroot_tmpdir/scmroot/ghc-temporary
Cloning into '/var/lib/mock/f41-build-839602-160255/root/chroot_tmpdir/scmroot/ghc-temporary'...
$ git reset --hard e16ce2c825695efe0cbc44ecb4dd5d7cded88259
HEAD is now at e16ce2c bump release