$ git clone -n https://src.fedoraproject.org/rpms/svt-av1.git /var/lib/mock/f40-build-2646009-66599/root/chroot_tmpdir/scmroot/svt-av1
Cloning into '/var/lib/mock/f40-build-2646009-66599/root/chroot_tmpdir/scmroot/svt-av1'...
$ git fetch origin 6550122a7178f1fa5db4a4dda1e70606ad27f71a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/svt-av1
 * [new ref]         6550122a7178f1fa5db4a4dda1e70606ad27f71a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6550122 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild