$ git clone -n https://src.fedoraproject.org/rpms/dnsx.git /var/lib/mock/f39-build-1507984-35326/root/chroot_tmpdir/scmroot/dnsx
Cloning into '/var/lib/mock/f39-build-1507984-35326/root/chroot_tmpdir/scmroot/dnsx'...
$ git fetch origin 3216742eb2cc02ca917bd28abfe11344d6b2e91d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnsx
 * [new ref]         3216742eb2cc02ca917bd28abfe11344d6b2e91d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3216742 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild