$ git clone -n https://src.fedoraproject.org/rpms/rust-vhost-user-backend.git /var/lib/mock/f40-build-2556404-62038/root/chroot_tmpdir/scmroot/rust-vhost-user-backend
Cloning into '/var/lib/mock/f40-build-2556404-62038/root/chroot_tmpdir/scmroot/rust-vhost-user-backend'...
$ git fetch origin 7c85eca8c49f9be3e5520ae633c93b7eef0db339:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-vhost-user-backend
 * [new ref]         7c85eca8c49f9be3e5520ae633c93b7eef0db339 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c85eca Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild