[5.4] withoutGlobalScopes is not works in eager loading if morphTo relation is used

[EligiusSantori]

• Laravel Version: 5.4.12
• PHP Version: 7.0.14
• Database Driver & Version: pdo_pgsql 7.0.14

Description:

There is no way to omit global scopes for morphTo relation.

Also the same problem is described here: https://laracasts.com/index.php/discuss/channels/general-discussion/remove-global-scope-on-morphto

Steps To Reproduce:

Schema::create('my_models', function (Blueprint $table) {
    $table->increments('id');
    $table->integer('parent_id');
    $table->morphs('owner');
});

...

class MyModel extends Model {
    public function parent() { // Simple belongsTo relation
        $relation = $this->belongsTo(Parent::class);
        $relation->withoutGlobalScopes(); // Works fine
        return $relation;
    }
    public function owner() { // Simple morphTo relation
        $relation = $this->morphTo();
        $relation->withoutGlobalScopes(); // No effect
        return $relation;
    }
}

...

$model = MyModel::with('parent', 'owner')->first();
assert(!is_null($model->parent); // ok
assert(!is_null($model->owner); // fails if owner was filtered by any global scope

[Sweeeeep]

+1

[pa-datpm]

+1