$ git clone -n https://src.fedoraproject.org/rpms/rust-tokio-util.git /var/lib/mock/f40-build-2644062-66496/root/chroot_tmpdir/scmroot/rust-tokio-util
Cloning into '/var/lib/mock/f40-build-2644062-66496/root/chroot_tmpdir/scmroot/rust-tokio-util'...
$ git fetch origin 5dcce9e166e2081a4bfb6414c26a7bd03e9e9d1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tokio-util
 * [new ref]         5dcce9e166e2081a4bfb6414c26a7bd03e9e9d1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5dcce9e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild