Fixed an issue with cache memory multi_get

Fail silently if object not found in cache, will be loaded later.

Author: LionelLaffineur

lib/Skeleton/Object/Cache/Handler/Memory.php

@@ -88,7 +88,9 @@ public static function get($key) {
 	public static function multi_get($keys) {
 		$result = [];
 		foreach ($keys as $key) {
-			$result[] = self::get($key);
+			try {
+				$result[] = self::get($key);
+			} catch (\Exception $e) {}
 		}
 		return $result;
 	}