After upgrading from 12.11 to 15.4 I have a problem editing pages when their title is longer than a number of characters. I can't even create pages with long title.
Note: My tiki-wiki 'has' only pages in Greek.
When I try to create a page with a long title, for example "Δοκιμαστικό λήμμα για να εξετάσω το πρόβλημα" and then try to save it, I will get the error
Page not found
Δοκιμαστικό λήμμα για να εξετά
So you see the title is cut at the 30th character and the page is not longer found (probably tiki is searching for the cut - title version of the page). But: When I see all my pages from the menu wiki->list pages, the page is there with the LONG (full) title.
The same with existing pages with long title: If I edit / save them, I get the same error and... bye bye page, I can see and open it only through wiki->list pages, but not otherwise (for example, I can't visit it through an already existing link in another page, because the link points to the "full - title" page).
Is there any option that limits number of characters in tiki pages to 30, that I am not aware of?