$ git clone -n https://src.fedoraproject.org/rpms/libspelling.git /var/lib/mock/f41-build-854270-166826/root/chroot_tmpdir/scmroot/libspelling
Cloning into '/var/lib/mock/f41-build-854270-166826/root/chroot_tmpdir/scmroot/libspelling'...
$ git fetch origin 75742e165263352fb5019211ebd7396b08c2785e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libspelling
 * [new ref]         75742e165263352fb5019211ebd7396b08c2785e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75742e1 Update to version 0.4.1 rhbz#2315051