$ git clone -n https://src.fedoraproject.org/rpms/zaf.git /var/lib/mock/f39-build-1465900-33627/root/chroot_tmpdir/scmroot/zaf
Cloning into '/var/lib/mock/f39-build-1465900-33627/root/chroot_tmpdir/scmroot/zaf'...
$ git fetch origin 4a90914d3b56a32fe2b471c68f4d8bba9ea3dc0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zaf
 * [new ref]         4a90914d3b56a32fe2b471c68f4d8bba9ea3dc0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a90914 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild