Index: trunk/wp-includes/post.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- trunk/wp-includes/post.php	(revision 21827)
+++ trunk/wp-includes/post.php	(revision )
@@ -1153,7 +1153,7 @@
 	if ( ! empty($args->supports) ) {
 		add_post_type_support($post_type, $args->supports);
 		unset($args->supports);
-	} else {
+	} elseif( false !== $args->supports ) {
 		// Add default features
 		add_post_type_support($post_type, array('title', 'editor'));
 	}