Touch ui dialog text field with sling:resourceType=granite/ui/components/coral/foundation/form/textfield incorrectly converts Latin characters. For example, "Eléctricos" gets saved as "ElÃ©ctricos".
This issue applies to many international language characters.
To force the dialog to save data in UTF character encoding, you can add a hidden element to the dialog form (solution A) or set default encoding to UTF-8 (solution B).
A. Add a hidden element to the dialog form
sling:resourceType (String) = granite/ui/components/coral/foundation/form/hidden ignoreData (Boolean) = true name (String) = _charset_ value (String) = utf-8