Update TypeConverter.php

typo bug

lib/Alcaeus/MongoDbAdapter/TypeConverter.php

@@ -44,7 +44,7 @@ class TypeConverter
             case $value instanceof BSON\Type:
                 return $value;
             case is_array($value):
-            case is_object($value);
+            case is_object($value):
                 $result = [];
 
                 foreach ($value as $key => $item) {