7.0.0 DXP FP9, 7.0.0 DXP SP2, Master
Steps to reproduce:
1. Set Spanish as default language from Control Panel > Configuration > Instance Settings > Miscellaneous
2. Go to the Site Admin > Content and Create a WC Structure: Str1, and add two fields:
2.1. A Text field called ParentText
2.2. An Integer nested field of ParentText called: NestedInteger
3. Save and go to the structure list.
4. Edit the default values of Str1 and set only the title.