$ git clone -n https://src.fedoraproject.org/rpms/ceres-solver.git /var/lib/mock/f40-build-2336723-59478/root/chroot_tmpdir/scmroot/ceres-solver
Cloning into '/var/lib/mock/f40-build-2336723-59478/root/chroot_tmpdir/scmroot/ceres-solver'...
$ git fetch origin b49eb166f1bfb8f367a07e297c31eea2f5266e6f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ceres-solver
 * [new ref]         b49eb166f1bfb8f367a07e297c31eea2f5266e6f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b49eb16 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild