$ git clone -n https://src.fedoraproject.org/rpms/cbios.git /var/lib/mock/f40-build-1992349-43589/root/chroot_tmpdir/scmroot/cbios
Cloning into '/var/lib/mock/f40-build-1992349-43589/root/chroot_tmpdir/scmroot/cbios'...
$ git fetch origin ba8a67c5324c0c6d2fd623a179e9f6fc131cd2b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cbios
 * [new ref]         ba8a67c5324c0c6d2fd623a179e9f6fc131cd2b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba8a67c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild