$ git clone -n https://src.fedoraproject.org/rpms/icu4j.git /var/lib/mock/f40-build-2423445-60593/root/chroot_tmpdir/scmroot/icu4j
Cloning into '/var/lib/mock/f40-build-2423445-60593/root/chroot_tmpdir/scmroot/icu4j'...
$ git fetch origin c8353d85be3032e00c844924c993f56a19b29ac2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/icu4j
 * [new ref]         c8353d85be3032e00c844924c993f56a19b29ac2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c8353d8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild