[support] Relative links in menu

Hi,

I'm using both primary and secondary links in a 5.2 site I've been developing. I also use an extra menu which is displayed on the left sidebar. One of this menu's options links to the integrated Drupal forum (forum path), which works fine. I also have the same link in another menu item from the secondary links (forum path). However, the latter is not rendered correctly. If I am at the admin pages, the menu item at the secondary links is rendered based on the current url and not on the site's root, so it could be rendered as admin/forum or node/add/forum, etc. The menu item in the left sidebar is always rendered without problem.

Why is this happening? Is this a bug or something else I'm missing?

Thanks,