Merged requested to merge fix/user-serializer into master
During black box testing of FR5 (View Workout) a bug in the class-level validation on the UserSerializer class was discovered. When accepting a coach offer, user validation would fail, complaining about the password being None.
The changes made to the initial implementation is know mostly reverted. Class-level validation is removed in favour of field-level validation for the password field. The implementation of the password validation, however, remains the same.
Additionally, default values for related required fields are know
declared using the
Unit tests for the UserSerializer class is also updated, to reflect the changes.