Wrong label/value generated for schemas using complex fields

Steps to reproduce the bug:

• Create a new schema, called ABAMomentExercice, with those fields:

• Create a new Document type called ABAMomentExercice, which extends Document
• Associate the schema to the document type
• Go to View Designer
  • Select this menu option: Layout > Local Types > ABAMomentExercice > create
  • Click on Configure button
• Labels for complex fields looks like this:
  

The complex field name is repeated several times, i.e the field answer1.uuid is referenced as Answer1.answer1.answer1.answer1.answer1.answer1.uuid

NOTE: If you revert the layout and regenerate it a new field name is added to the label

NOTE II: Environment details in private comment