Changes to site tree list when viewing /admin/pages/edit/1 are not reflected after clicking "pages" breadcrumb link

[vinstah]

Hello,

In fresh install CMS5, visit admin (pages/edit/1) I duplicated Home page in the Sitetree on the left 5 times then clicked the Pages link at the top, where it loads the list but the changes are not there until I refresh.

Thanks,
Vinnie

Steps to reproduce:

1. Go to /admin/pages and click on any page, so that it loads the edit form for that page.
2. Make any change to the sitetree structure that doesn't require navigating away (e.g. change the order of pages, or duplicate an existing page via the right-click context menu)
3. Click the "Pages" link at the top of the site tree, which navigates you back to /admin/pages (do not just navigate using the browser's location bar)
   • The site tree should now appear as it did when you first visited /admin/pages
4. Refresh the page
   • You should see your changes again in the site tree

[GuySartorelli]

I've checked this in CMS 4 and found it affects that major release line as well.