$ git clone -n https://src.fedoraproject.org/rpms/cyrus-sasl.git /var/lib/mock/f39-build-1489381-34501/root/chroot_tmpdir/scmroot/cyrus-sasl
Cloning into '/var/lib/mock/f39-build-1489381-34501/root/chroot_tmpdir/scmroot/cyrus-sasl'...
$ git fetch origin 153a5db59e0288c28fd2b6a8cd4eced3efbf88e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cyrus-sasl
 * [new ref]         153a5db59e0288c28fd2b6a8cd4eced3efbf88e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 153a5db Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild