$ git clone -n https://src.fedoraproject.org/rpms/dnf5.git /var/lib/mock/f40-build-807831-145288/root/chroot_tmpdir/scmroot/dnf5
Cloning into '/var/lib/mock/f40-build-807831-145288/root/chroot_tmpdir/scmroot/dnf5'...
$ git fetch origin 0c27bc545bee5b23ee6f972e667537f84143087c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnf5
 * [new ref]         0c27bc545bee5b23ee6f972e667537f84143087c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c27bc5 Update to 5.1.17 upstream release