Preconditions:

• Register an user

Steps to reproduce:

1. Log in to back office.
2. Go to Admin > Users > Private customers.
3. Edit user mentioned in preconditions.
4. Change password to e.g. Asd123
5. Check web browser console output.

Actual result:

See attached screenshots.

Uncaught SyntaxError: Unexpected end of JSON input
    at JSON.parse (<anonymous>)
    at ProfileDataField.setInitialValue 

Expected result:

No exception occurs.

NOTE: 
Please note that on v2.5.13 validation for 'user password change' doesn't work at all. User can provide password which doesn't meet the requirements and save the content.