$ git clone -n https://src.fedoraproject.org/rpms/flex.git /var/lib/mock/f41-build-842167-161571/root/chroot_tmpdir/scmroot/flex
Cloning into '/var/lib/mock/f41-build-842167-161571/root/chroot_tmpdir/scmroot/flex'...
$ git fetch origin dc359e98697ef6da7bc6abc0674bbd0b31ef7915:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flex
 * [new ref]         dc359e98697ef6da7bc6abc0674bbd0b31ef7915 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc359e9 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild