$ git clone -n https://src.fedoraproject.org/rpms/cura.git /var/lib/mock/f39-build-2055337-49117/root/chroot_tmpdir/scmroot/cura
Cloning into '/var/lib/mock/f39-build-2055337-49117/root/chroot_tmpdir/scmroot/cura'...
$ git fetch origin 7b40be3694345d69b8df38efcc9e7261c331b647:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cura
 * [new ref]         7b40be3694345d69b8df38efcc9e7261c331b647 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b40be3 Avoid "KeyError: material_name" crash