Menu item for the viewed contact page (with category) is not the active one

I came accross an issue when using the contact_forms and the menu_block modules.

Here is my setup, the issue and then my solution.

In my primary-links menu I have the follwing items

• Section 1 (path = content/page/page_1)
  • Section 1 subpage (path = content/page/subpage_1)
  • Section 1 contact form (path = contact/section_1)
• Section 2 (path = content/page/page_2)
  • Section 2 subpage (path = content/page/subpage_2)
  • Section 2 contact form (path = contact/section_2)

Then I use menu_blocks to create a block witch list the subpage and contact form of the current section in my left columns.When viewing "Section 1 subpage", this block contains links for "Section 1 subpage" and "Section 1 contact form". But it doesn't work when viewing contact forms and the block is empty.

For what I understand, menu_block uses the core menu system to find the part of the menu to display. But it seems that when viewing contact/section_1 and contact/section_2, the active menu item (== the last entry in the result of menu_get_active_trail) is 'contact' which is not in the primary-links menu. So menu_block could not find out that the current page is under "Section 1" or "Sectiob 2".

I added the following functions to forms_contact fo force a menu entry to exists for the contact_forms pages

This added items is the active item when viewing a contact page with a category. So the active menu item is correctly detected and menu_block is able to find the part of the menu to display in its block.