$ git clone -n https://src.fedoraproject.org/rpms/eclib.git /var/lib/mock/f39-build-2185718-51303/root/chroot_tmpdir/scmroot/eclib
Cloning into '/var/lib/mock/f39-build-2185718-51303/root/chroot_tmpdir/scmroot/eclib'...
$ git fetch origin 0cf9fcd4ae2129e4a0739c6b0b08d5d7604cf88c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/eclib
 * [new ref]         0cf9fcd4ae2129e4a0739c6b0b08d5d7604cf88c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0cf9fcd Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild