$ git clone -n https://src.fedoraproject.org/rpms/armadillo.git /var/lib/mock/f40-build-2586096-62427/root/chroot_tmpdir/scmroot/armadillo
Cloning into '/var/lib/mock/f40-build-2586096-62427/root/chroot_tmpdir/scmroot/armadillo'...
$ git fetch origin 1bf13dd2c9d47ec030fd925e440b9b9dadbb6f29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/armadillo
 * [new ref]         1bf13dd2c9d47ec030fd925e440b9b9dadbb6f29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1bf13dd Update to 12.8.1 (#2267418)