$ git clone -n https://src.fedoraproject.org/rpms/booksorg.git /var/lib/mock/f41-build-828345-155705/root/chroot_tmpdir/scmroot/booksorg
Cloning into '/var/lib/mock/f41-build-828345-155705/root/chroot_tmpdir/scmroot/booksorg'...
$ git fetch origin 6a95cff80f5f08fec28ac9eaa0186b94c964856e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/booksorg
 * [new ref]         6a95cff80f5f08fec28ac9eaa0186b94c964856e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a95cff Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild