unset variables in BETA5

you know the drill... variables should be set before they are used...

* notice: Undefined offset: 0 in /path/to/all/modules/ubercart/uc_product/uc_product.module on line 362.

355 /**
356 * Implementation of hook_forms().
357 *
358 * Register an "add to cart" form for each product to prevent id collisions.
359 */
360 function uc_product_forms($form_id, $args) {
361 $forms = array();
362 $product = $args[0];
363 if (in_array($product->type, array_keys(uc_product_node_info()))) {
364 $forms['uc_product_add_to_cart_form_'. $product->nid] = array('callback' => 'uc_product_ad d_to_cart_form');
365 $forms['uc_catalog_buy_it_now_form_'. $product->nid] = array('callback' => 'uc_catalog_buy _it_now_form');
366 }
367 return $forms;
368 }

* notice: Trying to get property of non-object in /path/to/all/modules/ubercart/uc_product/uc_product.module on line 363.

see above.

* notice: Undefined offset: 0 in /path/to/all/modules/ubercart/uc_product_kit/uc_product_kit.module on line 349.

347 function uc_product_kit_forms($form_id, $args) {
348 $forms = array();
349 $product = $args[0];
350 if ($product->type == 'product_kit') {
351 $forms['uc_product_kit_add_to_cart_form_'. $product->nid] = array('callback' => 'uc_product _kit_add_to_cart_form');
352 $forms['uc_product_add_to_cart_form_'. $product->nid] = array('callback' => 'uc_product_kit _add_to_cart_form');
353 $forms['uc_catalog_buy_it_now_form_'. $product->nid] = array('callback' => 'uc_product_kit_ buy_it_now_form');
354 }
355 return $forms;
356 }

* notice: Trying to get property of non-object in /path/to/all/modules/ubercart/uc_product_kit/uc_product_kit.module on line 350.

see above.