$ git clone -n https://src.fedoraproject.org/rpms/libdfp.git /var/lib/mock/f40-build-785714-134079/root/chroot_tmpdir/scmroot/libdfp
Cloning into '/var/lib/mock/f40-build-785714-134079/root/chroot_tmpdir/scmroot/libdfp'...
$ git fetch origin e1a7817e18df9c86316223759360dc0e76a41693:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdfp
 * [new ref]         e1a7817e18df9c86316223759360dc0e76a41693 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1a7817 Fix upstream issue #189