If a menu item's path is already used by another menu item, then the child menu's wont expand althought you click on it.
You can only expand unless you force Always Expand on parent menu.

See also http://drupal.org/node/87649.

Comments

dpearcefl’s picture

dpearcefl commented
Status: Active » Closed (won't fix)

Due to the age of the last comment on this issue and due to the fact that D5 is no longer supported, I am closing this issue.