Lost translations of strings wrapped in wpml-string shortcode

Overview of the issue

When upgrading to WPML 3.7.0, translations of strings wrapped in the wpml-string shortcodes are lost.

Apply the following patch in the ../wpml-string-translation/inc/wpml-string-shortcode.php file, on line 8:

Replace: $atts = shortcode_atts( array(), $atts );
With: extract( shortcode_atts( array(), $atts ) );