$ git clone -n https://src.fedoraproject.org/rpms/opus.git /var/lib/mock/f40-build-787485-134780/root/chroot_tmpdir/scmroot/opus
Cloning into '/var/lib/mock/f40-build-787485-134780/root/chroot_tmpdir/scmroot/opus'...
$ git fetch origin ef2d86771b99a7c2cbd87fd2aee622d5397444c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/opus
 * [new ref]         ef2d86771b99a7c2cbd87fd2aee622d5397444c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef2d867 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild