$ git clone -n https://src.fedoraproject.org/rpms/libcec.git /var/lib/mock/f40-build-2293664-56213/root/chroot_tmpdir/scmroot/libcec
Cloning into '/var/lib/mock/f40-build-2293664-56213/root/chroot_tmpdir/scmroot/libcec'...
$ git fetch origin e75aa7a25f7bb2f4ed15ab40545fddc233b62df0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcec
 * [new ref]         e75aa7a25f7bb2f4ed15ab40545fddc233b62df0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e75aa7a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild