Actually delegate execution to new instance and return result instead just returning the instance.

lib/Dwoo/Core.php

@@ -316,7 +316,8 @@ class Dwoo_Core
     {
         // a render call came from within a template, so we need a new dwoo instance in order to avoid breaking this one
         if ($this->template instanceof Dwoo_ITemplate) {
-            return clone $this;
+            $clone = clone $this;
+            return $clone->get($_tpl, $data, $_compiler, $_output);
         }
 
         // auto-create template if required

lib/plugins/builtin/functions/include.php

@@ -62,7 +62,7 @@ function Dwoo_Plugin_include(Dwoo_Core $dwoo, $file, $cache_time = null, $cache_
 		$vars = $rest + $vars;
 	}
 
-	$clone = $dwoo->get(null);
+	$clone = clone $dwoo;
 	$out = $clone->get($include, $vars);
 
 	if ($assign !== null) {