diff --git a/lib/Cake/Network/CakeRequest.php b/lib/Cake/Network/CakeRequest.php
index 228e46e2e..7e5cc4bac 100644
--- a/lib/Cake/Network/CakeRequest.php
+++ b/lib/Cake/Network/CakeRequest.php
@@ -303,7 +303,7 @@ class CakeRequest implements ArrayAccess {
 			return $this->base = $base;
 		}
 
-		if (!$baseUrl) {
+		if (empty($baseUrl)) {
 			$base = dirname(env('PHP_SELF'));
 			// Clean up additional / which cause following code to fail..
 			$base = preg_replace('#/+#', '/', $base);
diff --git a/lib/Cake/Utility/ObjectCollection.php b/lib/Cake/Utility/ObjectCollection.php
index 77e4ad234..1e36e4c4d 100644
--- a/lib/Cake/Utility/ObjectCollection.php
+++ b/lib/Cake/Utility/ObjectCollection.php
@@ -126,7 +126,7 @@ abstract class ObjectCollection {
 		}
 		$result = null;
 		foreach ($list as $name) {
-			$result = call_user_func_array(array($this->_loaded[$name], $callback), compact('subject') + $params);
+			$result = call_user_func_array(array($this->_loaded[$name], $callback), array_filter(compact('subject')) + $params);
 			if ($options['collectReturn'] === true) {
 				$collected[] = $result;
 			}