$ git clone -n https://src.fedoraproject.org/rpms/icu.git /var/lib/mock/f41-build-side-1-3132652-39663/root/chroot_tmpdir/scmroot/icu
Cloning into '/var/lib/mock/f41-build-side-1-3132652-39663/root/chroot_tmpdir/scmroot/icu'...
$ git fetch origin 70395e5072ae7b17ba5eae8efd6be835da7d5a4e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/icu
 * [new ref]         70395e5072ae7b17ba5eae8efd6be835da7d5a4e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70395e5 Add NAIST-2003 license specifier