Non localizable DDM fields are editable in all the languages when title empty

• Type: Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: Master
• Fix Version/s: None
• Component/s: Dynamic Data Mapping
• Labels: None
• Fix Priority: 3

Non-localizable DDM fields are editable in all the languages when saving structure with no title

Steps to reproduce:

1. Create a new structure (en_US as default)
2. Add a non localized boolean (for example) field
3. Create a new article using this structure
4. Check the check field
5. Change the language to ca_ES
6. Try to save with empty title on non default language 

Expected: The field is disabled and its value is not modifiable

Current: The field is enabled. if you change this value it affects to all the langs (including the default)