don't show form if subscription can't be found (weirdly)

darcs-hash:20081212055713-84dde-1b2aa99861ee0ab7c63a48152a5590b4d2f360d9.gz

actions/subscriptions.php

@@ -56,8 +56,13 @@ class SubscriptionsAction extends GalleryAction {
 class SubscriptionsList extends ProfileList {
 
     function show_owner_controls($profile) {
+
 		$sub = Subscription::pkeyGet(array('subscriber' => $this->owner->id,
 										   'subscribed' => $profile->id));
+        if (!$sub) {
+            return;
+        }
+
         common_element_start('form', array('id' => 'subedit-' . $profile->id,
                                            'method' => 'post',
                                            'class' => 'subedit',