$ git clone -n https://src.fedoraproject.org/rpms/nanopb.git /var/lib/mock/f41-build-815188-149424/root/chroot_tmpdir/scmroot/nanopb
Cloning into '/var/lib/mock/f41-build-815188-149424/root/chroot_tmpdir/scmroot/nanopb'...
$ git fetch origin c581e313e84bf1ffbf2016ee671d2b879667ea9d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nanopb
 * [new ref]         c581e313e84bf1ffbf2016ee671d2b879667ea9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c581e31 Rebuilt for Python 3.13