Error when feed does not exist

https://github.com/marienfressinaud/FreshRSS/issues/579

app/Models/Feed.php

@@ -28,6 +28,12 @@ class FreshRSS_Feed extends Minz_Model {
 		}
 	}
 
+	public static function example() {
+		$f = new FreshRSS_Feed('http://example.net/', false);
+		$f->faviconPrepare();
+		return $f;
+	}
+
 	public function id() {
 		return $this->id;
 	}

app/views/helpers/view/normal_view.phtml

@@ -81,7 +81,12 @@ if (!empty($this->entries)) {
 				}
 			}
 			$feed = FreshRSS_CategoryDAO::findFeed($this->cat_aside, $item->feed ());	//We most likely already have the feed object in cache
-			if (empty($feed)) $feed = $item->feed (true);
+			if ($feed == null) {
+				$feed = $item->feed(true);
+				if ($feed == null) {
+					$feed = FreshRSS_Feed::example();
+				}
+			}
 			?><li class="item website"><a href="<?php echo _url ('index', 'index', 'get', 'f_' . $feed->id ()); ?>"><img class="favicon" src="<?php echo $feed->favicon (); ?>" alt="✇" /> <span><?php echo $feed->name(); ?></span></a></li>
 			<li class="item title"><a target="_blank" href="<?php echo $item->link (); ?>"><?php echo $item->title (); ?></a></li>
 			<?php if ($topline_date) { ?><li class="item date"><?php echo $item->date (); ?> </li><?php } ?>