$ git clone -n https://src.fedoraproject.org/rpms/icu.git /var/lib/mock/f40-build-2059362-49155/root/chroot_tmpdir/scmroot/icu
Cloning into '/var/lib/mock/f40-build-2059362-49155/root/chroot_tmpdir/scmroot/icu'...
$ git fetch origin a75d097e82be7bde1505b61f5a90969c70ae941c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/icu
 * [new ref]         a75d097e82be7bde1505b61f5a90969c70ae941c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a75d097 Fix broken TestHebrewCalendarInTemporalLeapYear