lib/load-subfile.js
function addLocalGulpTasks(subfile, submodule, tasks) {

    var gulpMod = findModule(function(mod) {
        return (path.basename(path.dirname(mod.id)) === 'gulp');
    }, submodule);

    var localInst = gulpMod.exports;

    // copy all the tasks over
    for (var name in localInst.tasks) {
        if (localInst.tasks.hasOwnProperty(name)) {
            var task = localInst.tasks[name];

            if (!task.__hubadded) {
                task.__hubadded = true;
                addSubtask(subfile, tasks, task.name, task.dep, task.fn);
            }
        }
    }
}
function addLocalGulpTasks(subfile, submodule, tasks) {

    var gulpMod = findModule(function(mod) {
        return (path.basename(path.dirname(mod.id)) === 'gulp');
    }, submodule);

    var localInst = gulpMod.exports;

    // copy all the tasks over
    for (var name in localInst.tasks) {
        if (localInst.tasks.hasOwnProperty(name)) {
            var task = localInst.tasks[name];

            if (!task.__hubadded) {
                task.__hubadded = true;
                addSubtask(subfile, tasks, task.name, task.dep, task.fn);
            }
        }
    }
}
I see trouble ahead...