Slug dependent field with accented characters
In one of my models i needed a slug (linked) field.
The problem was that i'm using spanish texts, and a title like "Sólo una prueba más" was "slugified" as "slo-una-prueba-ms".
All accented chars disappear.
Just by adding this line...
text = text.normalize('NFD');
...as the first line of the url_title function in linked_field_formatters.js (or fuel.min.js), did the job.
Maybe it's a good thing to add in the future for all the non-english titles.
I hope this helps!