$ git clone -n https://src.fedoraproject.org/rpms/pioneer.git /var/lib/mock/f39-build-1648780-40450/root/chroot_tmpdir/scmroot/pioneer
Cloning into '/var/lib/mock/f39-build-1648780-40450/root/chroot_tmpdir/scmroot/pioneer'...
$ git fetch origin cd8f32bc4688d8a1e69d7add1ec12de3cb56e16e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pioneer
 * [new ref]         cd8f32bc4688d8a1e69d7add1ec12de3cb56e16e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd8f32b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild