Menu item field 'path' prepended random alias

[janich]

After upgrading a rather simple site (core joomla components only), I found that whenever a menu item were saved it would prepend a (seemingly) random alias to the "path" field.

Doing a "Rebuild" fixed this for all menu items - until they were saved once again.

This looked like the same issue as reported here: http://redcomponent.com/forum/92-jupgrade/127930-bug-in-menu-migration-method

[fastslack]

The random alias is nedded because the Joomla 2.5 database not allow duplicated aliases.

[mahagr]

I've also seen this issue -- I know that the alias needs to be unique, but JUpgrade is overdoing it:

Here is perfectly legal structure in Joomla 2.5+:

forum
* forum
discussions
* forum
** forum

But still JUpgrade converts the aliases as it thinks they are not unique (but they are!):

forum
* forum-1
discussions
* forum-2
** forum-3

So, Joomla does allow non-unique aliases, but each path should be different:

/forum
/forum/forum
/discussions/forum
/discussions/forum/forum

etc..

I also think that there may be a bug in menu creation as in many cases menu breaks if you try to add a new menu item in backend -- until you run Rebuild Menus like @janich suggested.