$ git clone -n https://src.fedoraproject.org/rpms/sweeper.git /var/lib/mock/f40-build-1526407-23923/root/chroot_tmpdir/scmroot/sweeper
Cloning into '/var/lib/mock/f40-build-1526407-23923/root/chroot_tmpdir/scmroot/sweeper'...
$ git fetch origin f6779025898c353ea10d78bfe65b2a7b52a7b7a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sweeper
 * [new ref]         f6779025898c353ea10d78bfe65b2a7b52a7b7a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f677902 24.05.2