script loader fix from mdawaffe. fixes #2701
git-svn-id: https://develop.svn.wordpress.org/trunk@4105 602fd350-edb4-49c9-b593-d223f7449a82
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@ -188,6 +188,8 @@ class _WP_Script {
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*/
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function wp_print_scripts( $handles = false ) {
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do_action( 'wp_print_scripts' );
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if ( '' === $handles ) // for wp_head
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$handles = false;
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global $wp_scripts;
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if ( !is_a($wp_scripts, 'WP_Scripts') ) {
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