Form field normalization is not working on forms upgraded from 7.0.x to 7.2

• Type: Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: 7.1.X, 7.2.X, 7.3.X, Master
• Fix Version/s: None
• Component/s: Forms
• Labels:
  • forms_customer_demand
• Fix Priority: 3
• Sprint: Forms_7.4_02, Forms_7.4_03, Forms_7.4_04, Forms_7.4_05, Forms_7.4_06

 Description
Form field normalization is not working on forms upgraded from 7.0.x to 7.2

 Steps to Reproduce

• Start up the 7.0 bundle;
• Go to Content & Data > Forms;
• Create a new Form;
• Add a Text field;
• Set the field label/name as '4444';
• Publish and save the form;
• Open the published form;
• Shutdown the bundle and keep the database running;
• Execute the necessary upgrades to migrate the database to the 7.2 bundle;
• Start up a 7.2 bundle with the same database;
• Go to  Content & Data > Forms and open the form created previously;
• Locate the text field created and check its field name property.

 Expected Result
Field name should be normalised with an underscore - should be '_4444'

 Actual Result
Field name is not normalised with an underscore - should be '_4444'