$ git clone -n https://src.fedoraproject.org/rpms/dnf5.git /var/lib/mock/f39-build-2693011-67906/root/chroot_tmpdir/scmroot/dnf5
Cloning into '/var/lib/mock/f39-build-2693011-67906/root/chroot_tmpdir/scmroot/dnf5'...
$ git fetch origin 68a430d6d86b364679e5f7823e5abaa6ae185efb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnf5
 * [new ref]         68a430d6d86b364679e5f7823e5abaa6ae185efb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68a430d Update to 5.1.17 upstream release