$ git clone -n https://src.fedoraproject.org/rpms/kbibtex.git /var/lib/mock/f39-build-1503088-34957/root/chroot_tmpdir/scmroot/kbibtex
Cloning into '/var/lib/mock/f39-build-1503088-34957/root/chroot_tmpdir/scmroot/kbibtex'...
$ git fetch origin 55d73f1a030cca579dab3a27ed02bf330d77e8b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kbibtex
 * [new ref]         55d73f1a030cca579dab3a27ed02bf330d77e8b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55d73f1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild