Index: wp-includes/class.wp-dependencies.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- wp-includes/class.wp-dependencies.php	(revision 7d34efea8d12d79604b6e192cd98b3b34a943d29)
+++ wp-includes/class.wp-dependencies.php	(revision )
@@ -218,6 +218,11 @@
 		if ( isset($this->registered[$handle]) )
 			return false;
 		$this->registered[$handle] = new _WP_Dependency( $handle, $src, $deps, $ver, $args );
+
+		if ( $args === 1 ) {
+			$this->add_data( $handle, 'group', 1 );
+		}
+
 		return true;
 	}