Update Umbraco to 7.12.2

WebCms/Umbraco/PartialViewMacros/Templates/ListChildPagesFromCurrentPage.cshtml

@@ -1,8 +1,17 @@
+@using Umbraco.Web
 @inherits Umbraco.Web.Macros.PartialViewMacroPage
 
-@{ var selection = CurrentPage.Children.Where("Visible"); }
+@*
+    This snippet makes a list of links to the of children of the current page using an unordered HTML list.
 
-@if (selection.Any())
+    How it works:
+    - It uses the Children method to get all child pages
+    - It then generates links so the visitor can go to each page
+*@
+
+@{ var selection = Model.Content.Children.Where(x => x.IsVisible()).ToArray(); }
+
+@if (selection.Length > 0)
 {
     <ul>
         @foreach (var item in selection)