$ git clone -n https://src.fedoraproject.org/rpms/tworld.git /var/lib/mock/f40-build-2206546-52056/root/chroot_tmpdir/scmroot/tworld
Cloning into '/var/lib/mock/f40-build-2206546-52056/root/chroot_tmpdir/scmroot/tworld'...
$ git fetch origin 51154dac9fdafaba535b48f366431fdb7d8b837e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tworld
 * [new ref]         51154dac9fdafaba535b48f366431fdb7d8b837e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51154da Migrate license tag to SPDX