Poor redirect experience when editing subscriptions

Why do we force-redirect to the overview page, when it's entirely possible that the source was not the overview page? Hard coding this in the form save() method makes a poor experience.

The preferred workflow would be for the overview page to add a redirect parameter to its edit action links, and for the edit action on the subscription view page to redirect to the view page. Then the user will end up where they expected to be, ie where they initiated the edit.

The order form has the following code:
$form_state->setRedirect('entity.commerce_order.canonical', ['commerce_order' => $this->entity->id()]);

This is what the product form does:

if (!empty($form_state->getTriggeringElement()['#continue'])) {
      $form_state->setRedirect('entity.commerce_product_variation.collection', ['commerce_product' => $product->id()]);
    }
    else {
      $form_state->setRedirect('entity.commerce_product.canonical', ['commerce_product' => $product->id()]);
    }

I think we should mimic what the order module is doing, I'll commit a slightly different version of the patch from #4 which doesn't attempt the redirection to the subscription collection since this is already covered by the destination parameter which is appended on the edit link.

Automatically closed - issue fixed for 2 weeks with no activity.