Merge pull request #857 from GeertDD/fix_metabox_toggle

Fix metabox toggle

assets/js/admin/write-panels.js

@@ -570,7 +570,7 @@ jQuery( function($){
 		// Open/close
 		jQuery('.wc-metaboxes-wrapper').on('click', '.wc-metabox h3', function(event){
 			// If the user clicks on some form input inside the h3, like a select list (for variations), the box should not be toggled
-			if ($(event.target).is(':input')) return;
+			if ($(event.target).filter(':input, option').length) return;
 
 			jQuery(this).next('.wc-metabox-content').toggle();
 		});