$ git clone -n https://src.fedoraproject.org/rpms/sweeper.git /var/lib/mock/f40-build-2309317-57341/root/chroot_tmpdir/scmroot/sweeper
Cloning into '/var/lib/mock/f40-build-2309317-57341/root/chroot_tmpdir/scmroot/sweeper'...
$ git fetch origin 45e51253b5f5da534e3e9679da055a9c5d00fae3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sweeper
 * [new ref]         45e51253b5f5da534e3e9679da055a9c5d00fae3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45e5125 24.01.90