$ git clone -n https://src.fedoraproject.org/rpms/libcyaml.git /var/lib/mock/f41-build-847424-163983/root/chroot_tmpdir/scmroot/libcyaml
Cloning into '/var/lib/mock/f41-build-847424-163983/root/chroot_tmpdir/scmroot/libcyaml'...
$ git fetch origin 98845131435f59b584c25f31ef604b0b629d49e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcyaml
 * [new ref]         98845131435f59b584c25f31ef604b0b629d49e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9884513 1.4.2; update packit config file