$ git clone -n https://src.fedoraproject.org/rpms/mallard-rng.git /var/lib/mock/f40-build-2296871-56420/root/chroot_tmpdir/scmroot/mallard-rng
Cloning into '/var/lib/mock/f40-build-2296871-56420/root/chroot_tmpdir/scmroot/mallard-rng'...
$ git fetch origin 1483edab5ff44f3c46b47257af7d2e95c5ab203c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mallard-rng
 * [new ref]         1483edab5ff44f3c46b47257af7d2e95c5ab203c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1483eda Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild